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Wilden

Wilden® Pump a PSG Dover Company, has led the market in Air-Operated Double-Diaphragm (AODD) pump technology since 1955. As the original inventor of the AODD pump, Wilden consistently introduces new innovations that propel positive displacement pumps and air distribution technology forward. Leveraging its extensive infrastructure, knowledge base, and intellectual capital, Wilden continues to exceed customer expectations worldwide.

As you might expect, Wilden remains at the forefront of diaphragm pump technology. With an unwavering commitment to innovation and customer satisfaction, Wilden continuously evaluates market dynamics, solving challenging pumping applications with cost-effective, energy-efficient AODD pumps. Their extensive knowledge base, combined with cutting-edge technologies and exceptional customer service, instills confidence in selecting Wilden as a reliable process-solution partner.

As the global leader in diaphragm pump technology, Wilden consistently introduces new innovations that propel positive displacement pumps into the future. With an extensive knowledge base and unparalleled customer service, Wilden ensures peace of mind for end users seeking reliable process solutions.

Their commitment to excellence, innovation, and customer satisfaction has driven them to create a world-class facility in Grand Terrace, CA. This facility spans over 170,000 square feet (15,793 square meters) and houses essential departments such as R&D, clean rooms, test facilities, QC, CAD, and injection molding. Wilden’s dedication to providing trustworthy AODD pumps continues to make them a reliable process-solution partner for customers worldwide.

The air operated double diaphragm pumps offered by Wilden are available in various sizes ranging from 6 mm (¼") to 203 mm (8") allowing for optimum flow rates. A wide variety of construction options are available to meet virtually any application requirement. The Wilden pump can handle pressures up to 221bar (3,200 psig) and temperatures to 176.7° C (350° F). Liquid path materials of construction include: aluminum, cast iron, stainless steel, alloy C, polyethylene, polypropylene, PVDF, carbon-filled (acetal, polyethylene, Teflon®, PTFE) Teflon® PFA, and PTFE.

Double-diaphragm pump technology uses compressed air to power the repeated back-and-forth motion of two flexible diaphragms mounted on a connecting rod. This continuous motion forces liquid out of one chamber for discharge while the other chamber fills with liquid.

Wilden's line of pump accessories enhance and protect your liquid process as well as add value to it. Whether you need a surge dampener to minimize pressure fluctuation, or an electronic controller to automate your pumping process, these accessories allow your Wilden pump to maximize your pumping process.

Wet Repair Kits and Air Kit are available by pump model. If you have a Wilden pump we have the correct kit to keep you pumping. There are thousands of repair parts available to replace or keep for spare backups.

10,253 products

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Series

1/4" (6mm) Bolted Plastic Pro-Flo SHIFT (PS25)
18 products
1/4" (6mm) Clamped Metal Pro-Flo (P.025)
35 products
1/4" (6mm) Bolted Plastic Pro-Flo (P25)
14 products
1/4" (6mm) Clamped Plastic Pro-Flo (P.025)
25 products
1/2" (13mm) Clamped Metal Pro-Flo SHIFT (PS1)
47 products
1/2" (13mm) Clamped Metal Pro-Flo (P1)
64 products
1/2" (13mm) Bolted Plastic Pro-Flo (P100)
90 products
1/2" (13mm) Clamped Plastic Pro-Flo (P1)
48 products
1" (25mm) Bolted Metal Pro-Flo SHIFT (PS220/PS230)
186 products
1" (25mm) Bolted Metal Pro-Flo (P220/P230)
247 products
1" (25mm) Clamped Metal Pro-Flo (P2)
93 products
1" (25mm) Bolted Plastic Pro-Flo (P200)
119 products
1" (25mm) Clamped Plastic Pro-Flo (P2)
82 products
1 1/2" (38mm) Bolted Metal Pro-Flo SHIFT (PS420/PS430)
484 products
1 1/2" (38mm) Clamped Metal Pro-Flo SHIFT (PS4)
189 products
1 1/2" (38mm) Bolted Plastic Pro-Flo SHIFT (PS400)
72 products
1 1/2" (38mm) Clamped Plastic Pro-Flo SHIFT (PS4)
25 products
1 1/2" (38mm) Bolted Metal Pro-Flo (P420/P430)
157 products
1 1/2" (38mm) Clamped Metal Pro-Flo (P4)
489 products
1 1/2" (38mm) Bolted Plastic Pro-Flo (P400)
123 products
1 1/2" (38mm) Clamped Plastic Pro-Flo (P4)
86 products
2" (51mm) Bolted Metal Pro-Flo SHIFT (PS820 / PS830)
499 products
2" (51mm) Clamped Metal Pro-Flo SHIFT (PS8)
230 products
2" (51mm) Bolted Plastic Pro-Flo SHIFT (PS800)
86 products
2" (51mm) Clamped Plastic Pro-Flo SHIFT (PS8)
19 products
2" (51mm) Bolted Metal Pro-Flo (P820/P830)
191 products
2" (51mm) Clamped Metal Pro-Flo (P8)
419 products
2" (51mm) Bolted Plastic Pro-Flo (P800)
187 products
2" (51mm) Clamped Plastic Pro-Flo (P8)
48 products
3" (76mm) Bolted Metal Pro-Flo SHIFT (PS1520/PS1530)
341 products
3" (76mm) Clamped Metal Pro-Flo SHIFT (PS15)
431 products
3" (76mm) Bolted Plastic Pro-Flo SHIFT (PS1500)
50 products
3" (76mm) Bolted Plastic Pro-Flo (P1500)
155 products
4" (102mm) Clamped Metal Pro-Flo SHIFT (PS20)
68 products
Saniflo Hygienic (HS) Pumps
305 products
Saniflo FDA Pumps (Hygienic & Sanitary)
251 products
Accu-Flo Electronic Control Pumps
245 products
Turbo-Flo Utility Pumps
135 products
High Pressure Pumps
51 products
Stallion Mining Pumps
208 products
Brahma Large Solids Handling Pumps
108 products
GPS CSA-Certified Natural Gas Pumps
48 products
UL Fuel Transfer Pumps
13 products
Velocity Compact Pumps
32 products
Diaphragms & Spare Repair Parts
2,166 products
Repair Kits - Air End / Wet End Spare Parts
771 products
Surge Dampeners & Accessories
503 products

1/4" (6mm) Bolted Plastic Pro-Flo SHIFT (PS25)
The 6 mm (1/4") Wilden® Pro-Flo® SHIFT Series PS25 Bolted Plastic AODD Pump combines elegant simplicity with maximum performance and efficiency. End users have relied on it for over 20 years. This pump series offers improved flow rates and an optimized liquid path, reducing internal friction. As a result, it maximizes output and extends diaphragm life. The Pro-Flo SHIFT PS25 is flexible, reliable, and ideal for challenging dosing and batching applications
Wetted Housings - Materials
Polypropylene - 1.2 kg (2.6 lb)
PVDF 1.7 kg (3.8 lb)
Non-Wetted Housings - Material
Center Section -Polypropylene
Air Valve - Polypropylene
Features & Benefits
• Simple and durable design
• Longest-lasting wear parts
• Lube-free operation
• Bolted construction for superior containment
• High suction lift
• Ease of operation and maintenance
18 products
1/4" (6mm) Clamped Metal Pro-Flo (P.025)
The 6 mm (1/4") Pro-Flo® Series P.025 clamped metal pumps, designed by Jim Wilden, feature the original air-operated double-diaphragm pump design. These pumps offer a simple and rugged design suitable for general industrial applications. With ease of maintenance in mind, clamped pumps are straightforward to install and allow quick serviceability. They can be disassembled and reassembled using only a single tool. Over time, hundreds of thousands of Jim’s clamped diaphragm pumps have successfully pumped billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 1.8 kg (4.0 lb)
Stainless Steel - 4.0 kg (8.9 lb)
Hastelloy - 4.3 kg (9.5 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/8" FNPT
- Liquid Inlet: 6 mm (1/4")
- Liquid Discharge: 6 mm (1/4")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 3.3 m (10.8') Dry, 9.3 m (30.6') Wet
  - TPE – 3.3 m (10.8') Dry, 9.3 m (30.6') Wet
  - PTFE – 4 m (13') Dry, 9.5 m (31.2') Wet
  - Maximum Flow Rate:
  - Rubber – 18.9 lpm (5 gpm)
  - TPE – 18.9 lpm (5 gpm)
  - PTFE – 18.9 lpm (5 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 0.4 mm (1/64")
  - *Displacement Per Stroke:
  - Rubber – 0.02 L (0.005 gal)
  - TPE – 0.02 L (0.005 gal)
  - PTFE – 0.02 L (0.005 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
The Wilden® Pro-Flo® Air Distribution System (ADS) provides excellent energy conservation and maximizes the mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump. Designed with simplicity and durability in mind, the Pro-Flo ADS is ideal for a wide range of industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
35 products
1/4" (6mm) Bolted Plastic Pro-Flo (P25)
The 6mm (1/4") Pro-Flo® series Wilden® bolted plastic air-operated double-diaphragm (AODD) pump combines maximum performance and efficiency with superior containment. Wilden's bolted-construction diaphragm pumps offer drastically improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 2 kg (4.4 lb) | PVDF - 2.6 kg (5.75 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene | Air Valve - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 1/8" FNPT
- Liquid Inlet: 6 mm (1/4")
- Liquid Discharge: 6 mm (1/4")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability: PTFE – 1.9 m (6.2') Dry, 9.3 m (30.6') Wet
- Maximum Flow Rate: PTFE – 16.7 lpm (4.4 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 0.4 mm (1/64")
- *Displacement Per Stroke: PTFE – 0.04 L (0.01 gal) * 1 cycle = 2 strokes
Elastomer Options
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Exceptional energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
14 products
1/4" (6mm) Clamped Plastic Pro-Flo (P.025)
When Wilden introduced the 6mm (1/4") Pro-Flo® series plastic pumps to his product lineup, he opted for a clamped design—a choice informed by his expertise. These plastic pumps mirror the advantages of their metal counterparts, offering a straightforward and robust construction ideal for chemical applications. Designed with maintenance ease in mind, these clamped plastic pumps are simple to install and can be disassembled and reassembled using just one tool. Over time, countless Jim Wilden clamped plastic pumps have reliably moved billions of gallons of fluid annually
Features & Benefits
• FNPT threaded inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 1.4 kg (3 lb)
PVDF - 1.4 kg (3 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/8" FNPT
- Liquid Inlet: 6 mm (1/4")
- Liquid Discharge: 6 mm (1/4")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 2.74 m (9') Dry, 9.45 m (31') Wet
  - TPE – 3.05 m (10') Dry, 8.84 m (29') Wet
  - PTFE – 2.44 m (8') Dry, 8.84 m (29') Wet
- Maximum Flow Rate:
  - Rubber – 18.1 lpm (4.8 gpm)
  - TPE – 18.1 lpm (4.8 gpm)
  - PTFE – 18.1 lpm (4.8 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 0.4 mm (1/64")
- *Displacement Per Stroke:
  - Rubber – 0.02 L (0.005 gal)
  - TPE – 0.02 L (0.005 gal)
  - PTFE – 0.02 L (0.005 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Achieve outstanding energy conservation and maximize the mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump by utilizing the robust Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo system shines across a diverse range of industrial applications such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
25 products
1/2" (13mm) Clamped Metal Pro-Flo SHIFT (PS1)
Wilden’s 13mm (1/2") Pro-Flo® series original air-operated double-diaphragm (AODD) pump design, featuring clamped metal pumps, provides a straightforward and robust solution for general industrial applications. These pumps are designed with maintenance ease in mind, allowing simple installation and quick serviceability—requiring only a single tool for disassembly and reassembly. Over time, countless Jim Wilden clamped aluminum and staibless steel pumps have reliably moved billions of gallons of fluid annually.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections for quick disconnect / connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 6 kg (13 lb)
Stainless Steel - 9 kg (20 lb)
Alloy C - 9.5 kg (21 lb)
Non-Wetted Housings - Material
Center Section / Center Block -Aluminum
Air Valve - Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 13 mm (1/2")
- Liquid Discharge: 13 mm (1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.9 m (19.3') Dry, 9.8 m (32.3') Wet
  - TPE – 5.7 m (18.7') Dry, 8.3 m (27.2') Wet
  - PTFE – 4.3 m (14.2') Dry, 9.7 m (31.7') Wet
- Maximum Flow Rate:
  - Rubber – 60.2 lpm (15.9 gpm)
  - TPE – 60.2 lpm (15.9 gpm)
  - PTFE – 59.8 lpm (15.8 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 1.6 mm (1/16")
- *Displacement Per Stroke*:
  - Rubber – 0.10 L (0.026 gal)
  - TPE – 0.10 L (0.026 gal)
  - PTFE – 0.10 L (0.026 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
47 products
1/2" (13mm) Clamped Metal Pro-Flo (P1)
The 13mm (1/2") Pro-Flo® series, Wilden's original air-operated double-diaphragm (AODD) pumps. Design features clamped metal pumps, which provide a straightforward and robust solution for general industrial applications. These pumps are designed with ease of maintenance in mind, allowing simple installation and quick serviceability—requiring only a single tool for disassembly and reassembly. Over time, countless Jim Wilden metal clamped pumps have reliably moved billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 6 kg (13 lb)
Stainless Steel - 9.2 kg (20 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Conductive Polypropylene, Acetal, Conductive Acetal
Air Valve - Polypropylene, Conductive Polypropylene, Acetal, Conductive Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 13 mm (1/2")
- Liquid Discharge: 13 mm (1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.8 m (19.0') Dry, 9.5 m (31.0') Wet
  - TPE – 5.2 m (17.0') Dry, 9.5 m (31.0') Wet
  - PTFE – 4.9 m (16.0') Dry, 9.5 m (31.0') Wet
- Maximum Flow Rate:
  - Rubber – 58.7 lpm (15.5 gpm)
  - TPE – 58.3 lpm (15.4 gpm)
  - PTFE – 54.4 lpm (14.4 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 1.59 mm (1/16'')
- *Displacement Per Stroke:
  - Rubber – 0.11 L (0.029 gal)
  - TPE – 0.11 L (0.029 gal)
  - PTFE – 0.09 L (0.025 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Vastly superior energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide array of industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
64 products
1/2" (13mm) Bolted Plastic Pro-Flo (P100)
Wilden’s 13mm (1/2") Pro-Flo® series double diaphragm (AODD) pump design features clamped metal pumps, which provide a straightforward and robust solution for general industrial applications. These pumps are designed with ease of maintenance in mind, allowing simple installation and quick serviceability—requiring only a single tool for disassembly and reassembly. Over time, countless Jim Wilden clamped pumps have reliably moved billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 4 kg (8 lb)
PVDF - 5 kg (10 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene
Air Valve - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 13 mm (1/2")
- Liquid Discharge: 13 mm (1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.2 m (17.0') Dry, 8.7 m (28.4') Wet
  - TPE – 5.2 m (17.0') Dry, 5.5 m (18.0') Wet
  - PTFE – 4.5 m (14.7') Dry, 9.3 (30.6') Wet
- Maximum Flow Rate:
  - Rubber – 56 lpm (14.8 gpm)
  - TPE – 58.7 lpm (15.5 gpm)
  - PTFE – 57 lpm (15 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 1.59 mm (1/16'')
- *Displacement Per Stroke:
  - Rubber – 0.10 L (0.027 gal)
  - TPE – 0.11 L (0.029 gal)
  - PTFE – 0.10 L (0.027 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
FKM | -40°C to 177°C (-40°C to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE * | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
The Wilden® Pro-Flo® Air Distribution System (ADS) offers exceptional energy conservation and maximizes mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump. Ideal for various industrial applications, the Pro-Flo system stands out with its durability and simplicity, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
90 products
1/2" (13mm) Clamped Plastic Pro-Flo (P1)
When Jim Wilden introduced the 13mm (1/2") Pro-Flo® series plastic pump series to his product lineup, he opted for a clamped design—a choice informed by his expertise. These plastic pumps mirror the advantages of their metal counterparts, offering a straightforward and robust construction ideal for chemical applications. Designed with maintenance ease in mind, these clamped plastic pumps are simple to install and can be disassembled and reassembled using just one tool. Over time, countless Wilden clamped plastic pumps have reliably moved billions of gallons of fluid annually.
Features & Benefits
• FNPT threaded inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 4.0 kg (9 lb)
PVDF - 5.0 kg (11 lb)
PTFE PFA - 6 kg (12 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 13 mm (1/2")
- Liquid Discharge: 13 mm (1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 6.1 m (20') Dry, 9.5 m (31') Wet
  - TPE – 5.8 m (19') Dry, 9.8 m (32') Wet
  - PTFE – 5.18 m (17') Dry, 9.8 m (32') Wet
- Maximum Flow Rate:
  - Rubber – 56 lpm (14.8 gpm)
  - TPE – 56.8 lpm (15 gpm)
  - PTFE – 53.4 lpm (14.1 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 1.6 mm (1/16'')
- *Displacement Per Stroke:
  - Rubber – 0.11 L (0.029 gal)
  - TPE – 0.11 L (0.030 gal)
  - PTFE – 0.10 L (0.027 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Conservation of energy and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial pumping applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
48 products
1" (25mm) Bolted Metal Pro-Flo SHIFT (PS220/PS230)
The Wilden® FIT bolted metal pump, 25mm (1") Pro-Flo® SHIFT establishes a fresh benchmark for pump performance. With an enhanced flow path design, these bolted-construction pumps deliver improved flow rates (up to 35% higher than competitive models) and extended diaphragm life. Additionally, Wilden’s bolted pumps are designed for superior containment and share the same bolt-down footprint and inlet/discharge connections as Wilden clamped pumps, ensuring easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (PS220)
• DIN or ANSI flanged inlet/discharge liquid connections (PS230) that don't require welding or nipple attachment
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 19 kg (41 lb)
Ductile Iron - 29 kg (64 lb)
Stainless Steel - 31 kg (68 lb)
Alloy C - 36 kg (80 lb)
Non-Wetted Housings - Material
Center Section / Center Block - Aluminum
Air Valve - Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 15 mm (1")
- Liquid Discharge: 25 mm (1")
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 6.9 m (22.7') Dry, 9.0 m (29.5') Wet
  - TPE – 5.9 m (19.3') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 5.2 m (17.0') Dry, 9.0 m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 204 lpm (54 gpm)
  - TPE – 212 lpm (56 gpm)
- Full-Stroke PTFE – 197 lpm (52 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 0.30 L (0.08 gal)
  - TPE – 0.26 L (0.07 gal)
  - Full-Stroke PTFE – 0.30 L (0.08 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
186 products
1" (25mm) Bolted Metal Pro-Flo (P220/P230)
The Wilden® FIT 25mm (1") Pro-Flo® series bolted metal pump establishes a fresh benchmark for pump performance. With an enhanced flow path design, these bolted-construction pumps deliver improved flow rates (up to 35% higher than competitive models) and extended diaphragm life. Additionally, Wilden’s bolted pumps are designed for superior containment and share the same bolt-down footprint and inlet/discharge connections as Wilden clamped pumps, ensuring easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (P220)
• DIN or ANSI flanged inlet/discharge liquid connections (P230) that don't require welding or nipple attachment
• Widest array of chemical compatibility
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 11 kg (24 lb)
Stainless Steel - 23 kg (51 lb)
Ductile Iron - 21 kg (47 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal, Conductive Polypropylene
Air Valve - Polypropylene, Acetal, Conductive Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 25 mm (1")
- Liquid Discharge: 25 mm (1")
- Connection Type: NPT / BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.4 m (17.6') Dry, 9.3 (30.6') Wet
  - TPE – 4.1 m (13.6') Dry, 9.3 (30.6') Wet
  - Full-Stroke PTFE – 5.5 m (18.2') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 3.5 m (11.4') Dry, 9.3 m (30.6') Wet
- Maximum Flow Rate:
  - Rubber – 212 lpm (56 gpm)
  - TPE – 212 lpm (56 gpm)
  - Full-Stroke PTFE – 185 lpm (49 gpm)
  - Reduced-Stroke PTFE – 168 lpm (44 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4'')
- *Displacement Per Stroke:
  - Rubber – 0.30 L (0.08 gal)
  - TPE – 0.34 L (0.09 gal)
  - Full-Stroke PTFE – 0.3 L (0.08 gal)
  - Reduced-Stroke PTFE – 0.23 L (0.06 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Pro-Flo® SHIFT (PS) iWilden Pumps are the industry’s premier air distribution system (ADS) that offers up to 60% energy savings and 34% greater flow rates compared to other AODD pump technologies1. This innovative system features an air control spool that automatically optimizes air consumption, conserving energy while maximizing mean time between repair (MTBR) for your AODD pump. Ideally suited for a wide variety of industrial applications, the Pro-Flo SHIFT is your go-to solution to maximize productivity and lower costs.
Applications
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
247 products
1" (25mm) Clamped Metal Pro-Flo (P2)
Featuring the original 25mm (1") Pro-Flo® Series air-operated double-diaphragm pump design by Jim Wilden, clamped metal pumps offer a simple, rugged design for general industrial applications. Designed with ease of maintenance in mind, clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Wilden clamped pumps have pumped billions of gallons of fluid on an year in and year out.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 9 kg (20 lb)
Stainless Steel - 17 kg (37 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 25 mm (1")
- Liquid Discharge: 25 mm (1")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.2 m (17.0') Dry, 9.0 m (29.5') Wet
  - TPE – 7.6 m (25.0') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 4.7 m (15.3') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 2.8 m (9.1') Dry, 9.0 m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 172 lpm (45.5 gpm)
  - TPE – 171 lpm (45.2 gpm)
  - Full-Stroke PTFE – 167 lpm (44.1 gpm)
  - Reduced-Stroke PTFE – 155 lpm (41 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 3.2 mm (1/8'')
- *Displacement Per Stroke:
  - Rubber – 0.3 L (0.08 gal)
  - TPE – 0.3 L (0.08 gal)
  - Full-Stroke PTFE – 0.3 L (0.08 gal)
  - Reduced-Stroke PTFE – 0.3 L (0.08 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
First-rate energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo shines in a wide array of commercial and industrial pumping applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
93 products
1" (25mm) Bolted Plastic Pro-Flo (P200)
The Wilden® 25mm (1") Pro-Flo® series bolted plastic air-operated double-diaphragm (AODD) pump combines maximum performance and efficiency with superior containment. Wilden's bolted-construction pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 9 kg (20 lb)
Stainless Steel - 17 kg (37 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 25mm (1")
- Liquid Discharge: 25mm (1")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.2m (17.0') Dry, 9.0m (29.5') Wet
  - TPE – 7.6m (25.0') Dry, 9.0m (29.5') Wet
  - Full-Stroke PTFE – 4.7m (15.3') Dry, 9.0m (29.5') Wet
  - Reduced-Stroke PTFE – 2.8m (9.1') Dry, 9.0m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 172 lpm (45.5 gpm)
  - TPE – 171 lpm (45.2 gpm)
  - Full-Stroke PTFE – 167 lpm (44.1 gpm)
  - Reduced-Stroke PTFE – 155 lpm (41 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 3.2 mm (1/8'')
- *Displacement Per Stroke:
  - Rubber – 0.3 L (0.08 gal)
  - TPE – 0.3 L (0.08 gal)
  - Full-Stroke PTFE – 0.3 L (0.08 gal)
  - Reduced-Stroke PTFE – 0.3 L (0.08 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Experience excellent energy conservation with the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a vast variety of industrial and commercial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
119 products
1" (25mm) Clamped Plastic Pro-Flo (P2)
When Jim Wilden's 25mm (1") Pro-Flo® series first added a plastic pump series to his product portfolio, he designed it with what he knew best: a clamped pump. Incorporating the same benefits as a clamped metal pump, these plastic versions offer a simple, rugged design that is ideally suited for chemical applications. Engineered with ease of maintenance in mind, clamped plastic pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's clamped plastic pumps have pumped billions of gallons of fluid on an annual basis.
Features & Benefits
• DIN and ANSI flanged inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 8 kg (18 lb)
PVDF - 10 kg (23 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 25 mm (1")
- Liquid Discharge: 25 mm (1")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.5 m (18.0') Dry, 8.8 m (29.0') Wet
  - TPE – 5.5 m (18.0') Dry, 8.8 m (29.0') Wet
  - Full-Stroke PTFE – 4.1 m (13.6') Dry, 8.6 m (28.4') Wet
  - Reduced-Stroke PTFE – 3.4 m (11') Dry, 8.8 m (29') Wet
- Maximum Flow Rate:
  - Rubber – 140 lpm (37 gpm)
  - TPE – 140 lpm (37 gpm)
  - Full-Stroke PTFE – 139 lpm (36.8 gpm)
  - Reduced-Stroke PTFE – 132 lpm (35 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 3.2 mm (1/8'')
- *Displacement Per Stroke:
  - Rubber – 0.31 L (0.08 gal)
  - TPE – 0.39 L (0.10 gal)
  - Full-Stroke PTFE – 0.6 L (0.15 gal)
  - Reduced-Stroke PTFE – 0.23 L (0.06 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Excellent energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial pumping applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
82 products
1 1/2" (38mm) Bolted Metal Pro-Flo SHIFT (PS420/PS430)
The 1 1/2" PS420 / PS430, 38mm Wilden® bolted metal pump, also known as FIT, sets the new standard for pump performance. Featuring an enhanced flow path design, Wilden's bolted-construction pumps offer improved flow rates (up to 35% over competitive models) as well as improved diaphragm life. Wilden's bolted pumps are also designed for superior containment and have the exact bolt down footprint and inlet/discharge connections as Wilden clamped pumps for easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (PS420)
• DIN or ANSI flanged inlet/discharge liquid connections (PS430) that don't require welding or nipple attachment
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 26 kg (57 lb) (PS420) | 28 kg (62 lb) (PS430)
Ductile Iron - 39 kg (86 lb) (PS420) | 42 kg (92 lb) (PS430)
Stainless Steel - 50 kg (111 lb) (PS420) | 53 kg (116 lb) (PS430)
Non-Wetted Housings - Material
Center Section / Center Block - Aluminum, Polypropylene, Stainless Steel
Air Valve - Aluminum, Anodized Aluminum, Polypropylene, Stainless Steel
Air Chamber - Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.9 m (19.5') Dry, 9.0 m (29.5') Wet
  - EZ-Install TPE – 6.2 m (20.4') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 5.5 m (17.9') Dry, 9.3 m (30.6') Wet
- Maximum Flow Rate:
  - Rubber – 500 lpm (132 gpm)
  - EZ-Install TPE – 510 lpm (135 gpm)
  - Full-Stroke PTFE – 485 lpm (128 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 1.1 L (0.30 gal)
  - EZ-Install TPE – 1.1 L (0.30 gal)
  - Full-Stroke PTFE – 1.1 L (0.30 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
484 products
1 1/2" (38mm) Clamped Metal Pro-Flo SHIFT (PS4)
AODD PS4 Pro-Flo Shift 1 1/2" / 38mm featuring the original air-operated double-diaphragm pump design by Jim Wilden. These clamped metal diaphragm pumps offer a simple, rugged design for general commercial and industrial applications. Designed with ease of maintenance in mind, PS4 38mm clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's Pro-Flo Shift clamped pumps have pumped an astonishing billions of gallons of fluid on an annual basis.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low Cost
• Simple Installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 21 kg (46 lb)
Stainless Steel - 28 kg (62 lb)
Ductile Iron - 30 kg (66 lb)
Non-Wetted Housings - Materials
Center Section - Aluminum, Nickel-Plated Aluminum, Stainless Steel, Polypropylene
Air Valve - Aluminum, Nickel-Plated, Anodized Aluminum, Stainless Steel, Polypropylene
Air Chamber - Aluminum, Nickel-Plated, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 7.0 m (22.9') Dry, 8.6 m (28.4') Wet
  - EZ-Install TPE – 7.1 m Dry (23.3'), 8.6 m Wet (28.4')
  - Full-Stroke PTFE – 7.0 m (22.9') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
  - Rubber – 310 lpm (82 gpm)
  - EZ-Install TPE – 314 lpm (83 gpm)
  - Full-Stroke PTFE – 375 lpm (99 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16")
- *Displacement Per Stroke:
  - Rubber – 1.0 L (0.27 gal)
  - EZ-Install TPE – 1.0 L (0.27 gal)
  - Full-Stroke PTFE – 1.0 L (0.27 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
189 products
1 1/2" (38mm) Bolted Plastic Pro-Flo SHIFT (PS400)
The 1 1/2" 38mm Wilden® Pro-Flo Shift PS400 bolted plastic air-operated double-diaphragm (AODD) pump series combines maximal performance & efficiency with remarkable containment. Wilden's bolted-construction pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 28 kg (62 lb)
PVDF - 32 kg (70 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.4 m (17.6') Dry, 9.0 m (29.5') Wet
  - EZ-Install TPE – 4.0 m (13.1') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 5.6 m (18.4') Dry, 9.0 m (29.5') Wet
  - Maximum Flow Rate:
  - Rubber – 458 lpm (121 gpm)
  - EZ-Install TPE – 447 lpm (118 gpm)
  - Full-Stroke PTFE – 447 lpm (118 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4')
- *Displacement Per Stroke:
  - Rubber – 1.1 L (0.28 gal)
  - EZ-Install TPE – 1.1 L (0.28 gal)
  - Full-Stroke PTFE – 1.0 L (0.27 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
72 products
1 1/2" (38mm) Clamped Plastic Pro-Flo SHIFT (PS4)
When the first 1 1/2", 38mm clamped plastic Pro-Flo Shift pump series was added to the Wilden product portfolio, he designed it with what he knew best: a clamped pump. Incorporating the same benefits as a clamped metal pump, these plastic versions offer a simple, rugged design that is ideally suited for chemical applications. Engineered with ease of maintenance in mind, clamped plastic pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's clamped plastic pumps have pumped billions of gallons of fluid on an annual basis.
Features & Benefits
• DIN and ANSI flanged inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 18 kg (40 lb)
PVDF - 24 kg (52 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene, Aluminum, Stainless Steel
Air Valve - Polypropylene, Aluminum Stainless Steel
Air Chamber - Aluminum, PFA-Coated Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.9 m (19.5') Dry, 8.3 (27.2') Wet
  - EZ-Install TPE – 6.2 m (20.4') Dry, 8.3 m (27.2') Wet
  - Full-Stroke PTFE – 6.1 m (19.9') Dry, 8.3 m (27.2') Wet
- Maximum Flow Rate:
  - Rubber – 379 lpm (100 gpm)
  - EZ-Install TPE – 378 lpm (100 gpm)
  - Full-Stroke PTFE – 368 lpm (98 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16")
- *Displacement Per Stroke:
  - Rubber –1.0 L (0.26 gal)
  - EZ-Install TPE – 1.0 L (0.26 gal)
  - Full-Stroke PTFE – 1.0 L (0.26 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
25 products
1 1/2" (38mm) Bolted Metal Pro-Flo (P420/P430)
The Pro-Flo P420 / P430 Wilden® bolted metal pump, also known as FIT, sets the latest standard for pump performance. 1 1/2" / 38mm AODD pumps feature an enhanced flow path design, Wilden's bolted-construction pumps offer improved flow rates (up to 35% over competitive models) as well as improving diaphragm life overall. Wilden bolted diaphragm pumps are also designed for exceptional containment and have the exact bolt down footprint and inlet / outlet discharge connections as Wilden clamped pumps for easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (P420)
• DIN or ANSI flanged inlet/discharge liquid connections (P430) that don't require welding or nipple attachment
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 26 kg (57 lb) (P420) | 28 kg (62 lb) (P430)
Stainless Steel - 50 kg (111 lb) (P420) | 53 kg (116 lb) (P430)
Ductile Iron - 39 kg (86 lb) (P420) | 42 kg (92 lb) (P430)
Non-Wetted Housings - Materials
Center Section - Polypropylene
Air Valve - Polypropylene
Air Chamber - Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")v
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.5 m (18.2') Dry, 9.0 m (29.5') Wet
  - EZ-Install TPE – 4.8 m (15.9') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 5.2 m (17.0') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 2.8 m (15.9') Dry, 9.0 m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 492 lpm (130 gpm)
  - EZ-Install TPE – 492 lpm (130 gpm)
  - Full-Stroke PTFE – 473 lpm (125 gpm)
  - Reduced-Stroke PTFE – 341 lpm (90 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 1.2 L (0.32 gal)
  - TPE – 1.2 L (0.32 gal)
  - Full-Stroke PTFE – 1.1 L (0.28 gal)
  - Reduced-Stroke PTFE – 0.53 L (0.14 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Exceptions energy conservation and the first-rate mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of commercial and industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
157 products
1 1/2" (38mm) Clamped Metal Pro-Flo (P4)
The 38mm 1 1/2" P4 clamped metal pumps designed by Jim Wilden feature the original air-operated double-diaphragm (AODD) pump design. Here are the key points:
1. Rugged Design: These pumps have a straightforward and robust design, making them suitable for general industrial applications.
2. Ease of Maintenance: Clamped pumps are designed with maintenance in mind. They are easy to install and can be disassembled and reassembled using just a single tool.
3. Proven Performance: Over time, hundreds of thousands of Jim Wilden’s clamped pumps have successfully moved billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 13 kg (29 lb)
Stainless Steel - 20 kg (45 lb)
Cast Iron - 22 kg (49 lb)
Alloy C - 23 kg (51 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal, Nickel-Plated
Air Valve - Polypropylene, Acetal
Air Chamber - Aluminum, PFA-Coated, Acetal, Nickel-Plated, Stainless Steel, Halar-Coated
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")v
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 5.8 m (19.0') Dry, 8.0 (26.0') Wet
  - TPE – 5.2 m (17.0') Dry, 8.8 m (29.0') Wet
  - Full-Stroke PTFE – 6.4 m (21.0') Dry, 9.3 m (30.6') Wet
  - Reduced-Stroke PTFE – 3.7 m (12') Dry, 8.5 m (28') Wet
  - Ultra-Flex™ – 5.2 m (17.0') Dry, 8.5 m (28.0') Wet
- Maximum Flow Rate:
  - Rubber – 288 lpm (76 gpm)
  - TPE – 307 lpm (81 gpm)
  - Full-Stroke PTFE – 330 lpm (87.2 gpm)
  - Reduced-Stroke PTFE – 295 lpm (78 gpm) U
  - Ultra-Flex™ – 269 lpm (71 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16'') *Displacement Per Stroke:
  - Rubber – 0.98 L (0.26 gal)
  - TPE – 1.1 L (0.29 gal)
  - Full-Stroke PTFE – 1.1 L (0.29 gal)
  - Reduced-Stroke PTFE – 0.53 L (0.14 gal)
  - Ultra-Flex™ – .76 L (0.20 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
The Wilden® Pro-Flo® Air Distribution System (ADS) offers outstanding energy conservation and maximizes the mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump. This durable system excels in various industrial applications. If you have any specific questions or need further details, feel free to ask!
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
489 products
1 1/2" (38mm) Bolted Plastic Pro-Flo (P400)
Wilden® 1 1/2" 38mm Pro-Flo bolted plastic air-operated double-diaphragm (AODD) pump P400 models combine exceptional performance and efficiency with remarkable containment. Bolted-construction Wilden diaprhagm pumps offer enhanced flow rates and a redesigned liquid path that reduces internal friction for preferable output and longer lasting diaphragm lifespan.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 19 kg (41 lb)
PVDF - 27 kg (59 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")v
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.5 m (18.2') Dry, 9.0 m (29.5') Wet
  - TPE – 4.8 m (15.9') Dry, 9.3 m (30.6') Wet
  - Full-Stroke PTFE – 5.7 m (18.7') Dry, 9.3 m (30.6') Wet
  - Reduced-Stroke PTFE – 3.3 m (10.8') Dry, 9.7 m (31.8') Wet
- Maximum Flow Rate:
  - Rubber – 454 lpm (120 gpm)
  - TPE – 454 lpm (120 gpm)
  - Full-Stroke PTFE – 424 lpm (111.9 gpm)
  - Reduced-Stroke PTFE – 318 lpm (84 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.35 mm (1/4'')
- *Displacement Per Stroke:
  - Rubber- 1.25 L (0.33 gal)
  - TPE- 1.34 L (0.35 gal)
  - Full-Stroke PTFE – 1.1 L (0.30 gal)
  - Reduced-Stroke PTFE – 0.59 L (0.155 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°C to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE * | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Enjoy high-caliber energy conservation and the exceptional mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial and commercial pumping applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
123 products
1 1/2" (38mm) Clamped Plastic Pro-Flo (P4)
The 1 1/2" 38mm Wilden Pro-Flo P4 AODD expanded the product portfolio to include a plastic pump series. Wilden drew upon his immense expertise in clamped pumps. These 38mm 1 1/2" plastic versions mirror the benefits of their metal counterparts, offering a straightforward and rugged design that is particularly well-suited for chemical applications. Designed and engineered with ease of maintenance in mind, clamped plastic pumps are simple to install and can be disassembled and reassembled using just a single tool. Throughout recent history, hundreds of thousands of Wilden’s clamped plastic diaphragm pumps have successfully moved billions of gallons of fluid yearly.
Features & Benefits
• DIN and ANSI flanged inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 16.8 kg (37 lb)
PVDF - 21.3 kg (47 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Air Chamber - Aluminum, PTFE-Coated Aluminum, Acetal, Stainless Steel, Halar-Coated Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")v
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 4.88 m (16') Dry, 7.92 m (26') Wet
  - TPE – 3.96 m (13') Dry, 7.92 m (26') Wet
  - Full-Stroke PTFE – 4.7 m (15.3') Dry, 9.3 m (30.6') Wet
  - Reduced-Stroke PTFE – 3.05 m (10') Dry, 7.47 m (24.5') Wet
- Maximum Flow Rate:
  - Rubber – 348 lpm (92 gpm)
  - TPE – 354 lpm (94 gpm)
  - Full-Stroke PTFE – 352 lpm (92.9 gpm)
  - Reduced-Stroke PTFE – 261 lpm (69 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16'')
- *Displacement Per Stroke:
  - Rubber – 1.19 L (0.314 gal)
  - TPE – 1.18 L (0.311 gal)
  - Full-Stroke PTFE – 1.0 L (0.27 gal)
  - Reduced-Stroke PTFE – 0.53 L (0.139 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Remarkable energy conservation and superior mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo P4 excels in a wide variety of industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
86 products
2" (51mm) Bolted Metal Pro-Flo SHIFT (PS820 / PS830)
The 2" 51mm Wilden® Pro-Flo Shift bolted metal pump, also known as FIT, sets the new standard for pump performance. PS820 / PS830 AODD models feature an enhanced flow path design, Wilden's bolted-construction pumps offer improved flow rates (up to 35% over competitive models) as well as improved overall diaphragm lifespan. 51mm Wilden bolted pumps are also designed for exceptional containment and have the exact bolt down footprint and inlet and ourlet discharge connections as Wilden clamped pumps for easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (PS820)
• DIN or ANSI flanged inlet/discharge liquid connections (PS830) that don't require welding or nipple attachment
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 47 kg (104 lb) (PS820) | 54 kg (118 lb) (PS830)
Stainless Steel - 73 kg (161 lb) (PS820) | 81 kg (178 lb) (PS830)
Ductile Iron - 71 kg (156 lb) (PS820) | 82 kg (181 lb) (PS830)
Alloy C - 91 kg (200 lb) (PS830)
Non-Wetted Housings - Materials
Center Section - Aluminum, Polypropylene, Stainless Steel
Air Valve - Aluminum, Anodized Aluminum, Polypropylene, Stainless Steel
Air Chamber - Aluminum, Stainless Steel
Diaphragm Pump Specification:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 7.1 m (23.3') Dry, 9.0 m (29.5') Wet
  - EZ-Install TPE – 7.0 m (23.1') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 6.6 m (21.8') Dry, 9.0 m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 685 lpm (181 gpm)
  - EZ-Install TPE – 668 lpm (176 gpm)
  - Full-Stroke PTFE – 655 lpm (173 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 2.8 L (0.73 gal)
  - EZ-Install TPE – 2.6 L (0.70 gal)
  - Full-Stroke PTFE – 2.5 L (0.65 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
499 products
2" (51mm) Clamped Metal Pro-Flo SHIFT (PS8)
PS8 2" 51mm AODD models featuring the original air-operated double-diaphragm pump design by Jim Wilden. Clamped metal pumps offer a simple, rugged design for general commercial and industrial applications. Engineered with ease of maintenance in mind, clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's 2" PS8 clamped pumps have pumped many billions of gallons of fluid on an yearly basis.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 35 kg (78 lb) | Stainless Steel - 53 kg (117 lb) | Ductile Iron - 49 kg (109 lb)
Non-Wetted Housings - Materials
Center Section / Bloc - Aluminum, Nickel-Plated Aluminum, Stainless Steel, Polypropylene
Air Valve - Aluminum, Nickel-Plated Aluminum, Anodized Aluminum, Stainless Steel, Polypropylene
Air Chamber - Aluminum, Nickel-Plated Aluminum, Stainless Steel
Diaphragm Pump Specifications:
Air Inlet: 3/4" FNPT | Liquid Inlet: 51 mm (2") | Liquid Discharge: 51 mm (2") | Connection Type: NPT/BSPT (Threaded) | Maximum Suction Lift Capability: Rubber – 7.2 m (23.8') Dry, 9.0 m (29.5') Wet | EZ-Install TPE – 6.9 m (22.7') Dry, 9.0 m (29.5') Wet | Full-Stroke PTFE – 6.3 m (20.7') Dry, 8.6 m (28.4') Wet | Maximum Flow Rate: Rubber – 700 lpm (185 gpm) | EZ-Install TPE – 719 lpm (190 gpm) | Full-Stroke PTFE – 723 lpm (191 gpm) | Maximum Pressure: 8.6 bar (125 psi) | Maximum Diameter Solids: 6.4 mm (1/4") | *Displacement Per Stroke: Rubber – 2.6 L (0.69 gal) | EZ-Install TPE – 2.6 L (0.69 gal) | PTFE Full-Stroke – 2.4 L (0.64 gal) | * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F) | EPDM | -51°C to 138°C (-60°F to 280°F) | FKM | -40°C to 177°C (-40°F to 350°F) | Geolast® | -40°C to 82°C (-40°F to 180°F) | Neoprene |-18°C to 93°C (0°F to 200°F) | PTFE* | 4°C to 104°C (40°F to 220°F) | Polyurethane | -12°C to 66°C (10°F to 150°F) | Saniflex™ | -29°C to 104°C (-20°F to 220°F) | Wil-Flex™ | -40°C to 107°C (-40°F to 225°F) | * 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
230 products
2" (51mm) Bolted Plastic Pro-Flo SHIFT (PS800)
Wilden's 2" / 51mm PS800 bolted plastic air-operated double-diaphragm (AODD) pump combines exceptional performance and premium efficiency with remarkable containment. Wilden's bolted-construction diaprhagm pumps offer vastly improved flow rates and a redesigned liquid path that reduces internal friction for optimal output and longer diaphragm lifespan.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 40 kg (89 lb)
PVDF - 52 kg (115 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 5.9 m (19.3') Dry, 8.3 (27.2') Wet
  - EZ-Install TPE – 5.9 m (19.3') Dry, 8.3 m (27.2) Wet
  - Full-Stroke PTFE – 5.7 m (18.7') Dry, 8.3 m (27.2') Wet
- Maximum Flow Rate:
  - Rubber – 709 lpm (187 gpm)
  - EZ-Install TPE – 700 lpm (185 gpm)
  - Full-Stroke PTFE – 654 lpm (173 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 2.5 L (0.66 gal)
  - EZ-Install TPE – 2.6 L (0.68 gal)
  - Full-Stroke PTFE – 2.4 L (0.63 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
86 products
2" (51mm) Clamped Plastic Pro-Flo SHIFT (PS8)
Wilden expanded his AODD product lineup to include a plastic pump series, he drew upon his expertise in clamped pumps. These 2" (51mm) PS8 Pro-Flo Shift plastic pumps offer the same advantages as their metal counterparts, featuring a straightforward and rugged design ideal for chemical applications. Engineered with ease of maintenance in mind, these clamped plastic pumps are simple to install and can be disassembled and reassembled using just one tool. Over time, countless Wilden clamped plastic pumps have impressively moved billions of gallons of fluid annually.
Features & Benefits
• DIN and ANSI flanged inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 36 kg (79 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene, Aluminum, Stainless Steel
Air Valve - Polypropylene, Aluminum, Stainless Steel
Air Chamber - Polypropylene, Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 6.6 m (21.8') Dry, 8.3 m (27.2') Wet
  - EZ-Install TPE – 6.2 m (20.2') Dry, 8.3 m (27.2') Wet
  - Full-Stroke PTFE – 6.1 m (19.9') Dry, 8.3 m (27.2') Wet
- Maximum Flow Rate:
  - Rubber – 643 lpm (170 gpm)
  - EZ-Install TPE – 643 lpm (170 gpm)
  - Full-Stroke PTFE – 597 lpm (158 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 2.8 L (0.75 gal)
  - EZ-Install TPE – 2.7 L (0.72 gal)
  - Full-Stroke PTFE – 2.6 L (0.69 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
19 products
2" (51mm) Bolted Metal Pro-Flo (P820/P830)
Wilden 51mm 2" Pro-Flo Series FIT bolted metal diaphragm pumps establish a new benchmark for pump performance. Here are its key features:
1. Enhanced Flow Path Design: The FIT pump incorporates an optimized flow path design, resulting in improved flow rates. Compared to competitive models, it can achieve flow rates up to 35% higher.
2. Extended Diaphragm Life: The FIT pump’s construction enhances diaphragm longevity, ensuring reliable and efficient operation over time.
3. Superior Containment: Designed for superior containment, the FIT pump meets stringent safety requirements.
4. Easy Replacement: The FIT pump shares the same bolt-down footprint and inlet/discharge connections as Wilden clamped pumps. This makes replacement straightforward and convenient.
Feel free to ask if you need further details or have any other questions!
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (P820)
• DIN or ANSI flanged inlet/discharge liquid connections (P830) that don't require welding or nipple attachment
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 47 kg (104 lb) (P820) | 54 kg (118 lb) (P830)
Stainless Steel - 73 kg (161 lb) (P820) | 81 kg (178 lb) (P830)
Ductile Iron - 71 kg (156 lb) (P820) | 82 kg (181 lb) (P830)
Non-Wetted Housings - Materials
Center Section - Polypropylene
Air Valve - Polypropylene
Air Chamber - Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 7.4 m (24.3') Dry, 9.0 m (29.5') Wet
  - EZ-Install TPE – 6.7 m (21.9') Dry, 9.0 m (29.5') Wet
  - Full-Stroke PTFE – 6.9 m (22.6') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 4.6 m (15.1') Dry, 9.0 m (29.5') Wet
- Maximum Flow Rate:
  - Rubber – 609 lpm (161 gpm)
  - EZ-Install TPE – 605 lpm (160 gpm)
  - Full-Stroke PTFE – 590 lpm (156 gpm)
  - Reduced-Stroke PTFE – 492 lpm (130 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber –2.8 L (0.74 gal)
  - EZ-Install TPE – 2.5 L (0.67 gal)
  - Full-Stroke PTFE – 2.5 L (0.65 gal)
  - Reduced-Stroke PTFE – 1.7 L (0.46 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
High-caliber energy conservation and the remarkable mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of comemrcial or industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
191 products
2" (51mm) Clamped Metal Pro-Flo (P8)
The 2" 51mm P8 Pro-Flo clamped metal pumps, designed based on Jim Wilden’s original air-operated double-diaphragm (AODD) pump design, feature a straightforward and rugged design suitable for general industrial applications. These pumps prioritize ease of maintenance, allowing simple installation and quick serviceability. With just a single tool, the pump can be disassembled and reassembled. Over time, hundreds of thousands of Jim Wilden’s clamped pumps have successfully moved billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 32 kg (70 lb)
Stainless Steel - 51 kg (112 lb)
Cast Iron - 47 kg (104 lb)
Alloy C - 52 kg (114 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Aluminum, PTFE-Coated, Nickel-Plated, Stainless Steel, Halar-Coated Aluminum
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber –6.9 m (22.7') Dry, 8.6 m (28.4') Wet
  - TPE – 6.7 m (22.1') Dry, 8.6 m (28.4') Wet
  - Full-Stroke PTFE – 6.7 m (22.1') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 4.6 m (15.0') Dry, 9.5 m (31.0') Wet
  - Ultra-Flex™ – 4.9 m (16.0') Dry, 8.8 m (29.0') Wet
- Maximum Flow Rate:
  - Rubber – 623 lpm (165 gpm)
  - TPE – 630 lpm (166 gpm)
  - Full-Stroke PTFE – 618 lpm (163 gpm)
  - Reduced-Stroke PTFE – 496 lpm (131 gpm)
  - Ultra-Flex™ – 526 lpm (139 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 2.6 L (0.70 gal)
  - TPE – 2.8 L (0.75 gal)
  - Full-Stroke PTFE – 2.6 L (0.70 gal)
  - Reduced-Stroke PTFE – 1.67 L (0.44 gal)
  - Ultra-Flex™ – 2.12 L (0.56 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
The 2" P8 Wilden® Pro-Flo® Air Distribution System (ADS) provides outstanding energy conservation and maximizes the mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump. This durable system excels in various industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
419 products
2" (51mm) Bolted Plastic Pro-Flo (P800)
Wilden's 2" / 51mm P800 Pro-Flo series bolted plastic air-operated double-diaphragm (AODD) pump delivers exceptional performance and efficiency while ensuring superior containment. Here are the key points:
- Maximum Performance and Efficiency: This pump is designed for optimal performance, achieving high efficiency in fluid transfer applications.
- Superior Containment: The bolted construction ensures reliable containment, meeting safety requirements.
- Improved Flow Rates: The redesigned liquid path minimizes internal friction, resulting in improved flow rates.
- Extended Diaphragm Life: With reduced friction, the pump offers longer diaphragm life.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 32 kg (70 lb)
PVDF - 45 kg (99 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 6.23 m (20.4') Dry, 8.66 m (28.4') Wet
  - TPE – 5.54 m (18.16') Dry, 8.66 m (28.4') Wet
  - Full-Stroke PTFE – 5.9 m (19.5') Dry, 9.0 m (29.5') Wet
  - Reduced-Stroke PTFE – 4.15 m (13.62') Dry, 8.65 m (28.4') Wet
- Maximum Flow Rate:
  - Rubber – 624 lpm (165 gpm)
  - TPE – 615 lpm (162 gpm)
  - Full-Stroke PTFE – 615 lpm (162 gpm)
  - Reduced-Stroke PTFE – 504 lpm (133 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4") *Displacement Per Stroke:
  - Rubber – 2.75 L (0.73 gal)
  - TPE – 2.78 L (0.74 gal)
  - Full-Stroke PTFE – 2.5 L (0.67 gal)
  - Reduced-Stroke PTFE – 1.73 L (0.457 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
These 2" P800 pumps offer amazing energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial & commercial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
187 products
2" (51mm) Clamped Plastic Pro-Flo (P8)
When Jim Wilden introduced a plastic pump series to his product lineup, he leveraged his expertise in clamped pumps. These 2" 51mm P8 Pro-Flo plastic versions share the same advantages as their metal counterparts, featuring a straightforward and rugged design that suits chemical applications. Engineered for easy maintenance, clamped plastic pumps are simple to install and can be disassembled and reassembled using just one tool. Over time, countless Wilden clamped plastic pumps have successfully moved billions of gallons of fluid annually.
Features & Benefits
• DIN and ANSI flanged inlet/discharge liquid connections
• Rotatable inlet and discharge for flexibility
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Polypropylene - 34 kg (75 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Aluminum, PTFE-Coated Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 7.4 m (24.4') Dry, 8.6 m (28.4') Wet
  - TPE – 5.9 m (19.3') Dry, 8.6 m (28.4') Wet
  - Full-Stroke PTFE – 6.4 m (21.0') Dry, 8.6 m (28.4') Wet
  - Reduced-Stroke PTFE – 4.27 m (14.0') Dry, 9.45 m (31.0') Wet
  - Ultra-Flex™ – 4.88 m (16.0') Dry, 8.84 m (29.0') Wet
- Maximum Flow Rate:
  - Rubber – 591 lpm (156 gpm)
  - TPE – 583 lpm (154 gpm)
  - Full-Stroke PTFE – 562 lpm (148 gpm)
  - Reduced-Stroke PTFE – 481 lpm (127 gpm)
  - Ultra-Flex™ – 560 lpm (148 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4")
- *Displacement Per Stroke:
  - Rubber – 2.8 L (0.73 gal)
  - TPE – 2.8 L (0.73 gal)Full-Stroke PTFE – 2.6 L (0.69 gal)
  - Reduced-Stroke PTFE – 0.53 L (0.47 gal)
  - Ultra-Flex™ – 2.12 L (0.56 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Beneift from amazing energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of commercial and industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
48 products
3" (76mm) Bolted Metal Pro-Flo SHIFT (PS1520/PS1530)
Wilden's 3" PS1520 / PS1530 76mm bolted metal pump, also known as FIT, sets the new standard for pump performance. Featuring an optimal flow path design, Wilden's bolted-construction pumps offer improved flow rates (up to 35% over competitive models) as well as improved diaphragm lifespan. Wilden's bolted pumps are also designed for superior containment and have the exact bolt down footprint and inlet / outlet discharge connections as Wilden clamped pumps for easy replacement.
Features & Benefits
• NPT or BSPT threaded inlet/discharge liquid connections (PS1520)
• DIN or ANSI flanged inlet/discharge liquid connections (PS1530) that don't require welding or nipple attachment
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Largest chemical compatibilities
• Portable and submersible
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Flexible internal adjustment on manifolds
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 69 kg (152 lb) (PS1520) | 101 kg (223 lb) (PS1530)
Stainless Steel - 126 kg (278 lb) (PS1520) | 137 kg (300 lb) (PS1530)
Ductile Iron - 114 kg (251 lb) (PS1520) | 124 kg (272 lb) (PS1530)
Alloy C - 153 kg (337 lb) (PS1530)
Non-Wetted Housings - Materials
Center Section - Aluminum, Polypropylene, Stainless Steel
Air Valve - Aluminum, Polypropylene, Anodized Aluminum, Stainless Steel
Air Chamber - Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 76 mm (3")
- Liquid Discharge: 76 mm (3")
- Connection Type: NPT/BSPT (Threaded) | DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 7.2 m (23.8') Dry, 9.7 m (31.8’) Wet
  - EZ-Install TPE – 6.4 m (21.1') Dry, 9.7 m (31.8’) Wet
  - Full-Stroke PTFE – 6.2 m (20.2') Dry, 8.6 m (28.4') Wet
  - Full-Stroke PTFE (Ductile Iron) – 5.9 m (19.5') Dry, 9.7 m (31.7') Wet
- Maximum Flow Rate:
  - Rubber – 1026 lpm (271 gpm)
  - EZ-Install TPE – 1026 lpm (271 gpm)
  - Full-Stroke PTFE – 992 lpm (262 gpm)
  - Full-Stroke PTFE (Ductile Iron) – 874 lpm (231 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 12.7 mm (1/2")
- *Displacement Per Stroke:
  - Rubber – 5.1 L (1.35 gal)
  - EZ-Install TPE – 5.4 L (1.43 gal)
  - Full-Stroke PTFE – 5.0 L (1.32 gal)
  - Full-Stroke PTFE (Ductile Iron) – 4.8 L (1.26 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
341 products
3" (76mm) Clamped Metal Pro-Flo SHIFT (PS15)
Pro-Flo Shift 3" 76mm features the original air-operated double-diaphragm pump design by Jim Wilden. PS15 AODD clamped metal pumps offer a simple, rugged design for general industrial applications. Designed with ease of maintenance in mind, clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's clamped pumps have pumped billions of gallons of fluid on an annual basis.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 55 kg (121 lb)
Stainless Steel - 105 kg (230 lb)
Ductile Iron - 93 kg (205 lb)
Non-Wetted Housings - Materials
Center Section - Aluminum, Nickel-Plated Aluminum, Stainless Steel, Polypropylene
Air Valve - Aluminum, Nickel-Plated Aluminum, Anodized Aluminum, Stainless Steel, Polypropylene
Air Chamber - Aluminum, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 76 mm (3")
- Liquid Discharge: 76 mm (3")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
  - Rubber – 6.6 m (21.6') Dry, 8.6 m (28.4') Wet
  - EZ-Install TPE – 6.3 m (20.7') Dry, 8.6 m (28.4') Wet
  - Full-Stroke PTFE – 6.2 m (20.2') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
  - Rubber – 927 lpm (245 gpm)
  - EZ-Install TPE – 901 lpm (238 gpm)
  - Full-Stroke PTFE – 916 lpm (242 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 9.5 mm (3/8")
- *Displacement Per Stroke:
  - Rubber – 5.2 L (1.38 gal)
  - EZ-Install TPE – 5.3 L (1.41 gal)
  - Full-Stroke PTFE – 5.1 L (1.34 gal)* 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
431 products
3" (76mm) Bolted Plastic Pro-Flo SHIFT (PS1500)
Wilden® 3" Pro-Flo Shift PS1500 bolted plastic air-operated double-diaphragm (AODD) pump series combines exceptional performance and efficiency with remarkable containment. Wilden's bolted-construction diaphragm pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 125 kg (275 lb)
PVDF - 152 kg (335 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 76 mm (3")
- Liquid Discharge: 76 mm (3")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - EZ-Install TPE – 5.3 m (17.5') Dry, 8.3 m (28.4') Wet
  - Full-Stroke PTFE – 5.8 m (19.1') Dry, 8.6 m (28.4') Wet
  - Reduced-Stroke PTFE – 3.5 m (11.6') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
  - EZ-Install TPE – 1,024 lpm (271 gpm)
  - Full-Stroke PTFE – 999 lpm (262 gpm)
  - Reduced-Stroke PTFE – 882 lpm (233 gpm)
- Maximum Pressure: Polypropylene – 6.9 bar (100 psi) | PVDF – 8.6 bar (125 psi)
- Maximum Diameter Solids: 13 mm (1/2")
- *Displacement Per Stroke:
  - EZ-Install TPE – 5.4 L (1.42 gal)
  - Full-Stroke PTFE – 5.3 L (1.40 gal)
  - Reduced-Stroke PTFE – 3.5 L (0.93 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
50 products
3" (76mm) Bolted Plastic Pro-Flo (P1500)
Wilden® 3" 76mm bolted plastic P1500 air-operated double-diaphragm (AODD) pump combines superior performance and efficiency with remarkable containment. Wilden's bolted-construction pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm lifespan.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Polypropylene - 138 kg (305 lb)
PVDF - 161 kg (356 lb)
Non-Wetted Housings - Materials
Center Block - Polypropylene
Air Valve - Polypropylene
Air Chamber - Polypropylene
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 76 mm (3")
- Liquid Discharge: 76 mm (3")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Full-Stroke PTFE – 5.5 m (18.2') Dry, 8.6 m (28.4') Wet
  - Reduced-Stroke PTFE – 3.63 m (12') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
  - Full-Stroke PTFE – 878 lpm (232 gpm)
  - Reduced-Stroke PTFE – 784 lpm (207 gpm)
- Maximum Pressure:
  - 6.9 bar (100 psi) for polypropylene pumps
  - 8.6 bar (125 psi) for PVDF pumps
- Maximum Diameter Solids: 12.7 mm (1/2'')
- *Displacement Per Stroke:
  - Full-Stroke PTFE – 5.8 L (1.52 gal)
  - Reduced-Stroke PTFE – 3.75 L (0.99 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
EPDM | -51°C to 138°C (-60°F to 280°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Exceptional energy conservation and the first-rate mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide variety of industrial and comemrcial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
155 products
4" (102mm) Clamped Metal Pro-Flo SHIFT (PS20)
Wilden Pro-Flo Shift 4" 102mm features the original air-operated double-diaphragm pump design by Jim Wilden, clamped metal pumps offer a simple, rugged design for general industrial applications. Designed with ease of maintenance in mind, clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's clamped pumps have pumped millions upon billions of gallons of fluid on a yearly basis.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Ductile Iron - 223 kg (492 lb)
Non-Wetted Housings - Materials
Center Section - Aluminum, Stainless Steel, Polypropylene
Air Valve - Aluminum, Anodized Aluminum, Stainless Steel, Polypropylene
Air Chamber - Aluminum, Stainless Steel, Ductile Iron
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 102 mm (4")
- Liquid Discharge: 102 mm (4")
- Connection Type: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability:
  - Rubber – 4.1 m (13.5') Dry, 8.6 m (28.4') Wet
  - EZ-Install TPE – 4.4 m (14.4') Dry, 8.6 m (28.4') Wet
  - Full-Stroke PTFE – 3.8 m (12.7') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
  - Rubber – 1,048 lpm (277 gpm)
  - EZ-Install TPE – 1,003 lpm (265 gpm)
  - Full-Stroke PTFE – 953 lpm (252 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 35 mm (1-3/8")
- *Displacement Per Stroke:
  - Rubber – 4.5 L (1.2 gal)
  - EZ-Install TPE – 4.4 L (1.16 gal)
  - Full-Stroke PTFE – 4.2 L (1.13 gal)
  - * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene |-18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
68 products
Saniflo Hygienic (HS) Pumps
Wilden® Saniflo™ Hygienic™ Series AODD Pumps for Hygienic and Sanitary Applications
Saniflo™ Hygienic™ Series (HS) Pumps are uniquely designed for high-cleanliness requirements and feature a free-draining flow path that enables clean-in-place (CIP) capability. The HS flow-through liquid-path design also eliminates any potential areas where product residue can be trapped and contaminate the product. They are perfect for low-acid, pasteurized and protein-based products all the way up to biopharmaceutical sterile processes. HS pumps also meet the highest standards and requirements in the industry, including 3A, ATEX, EC 1935/2004 and FDA CFR 21.177.
High-Pressure Saniflo™ Hygienic™ Series (HS) pumps are uniquely designed for thick viscous product applications such as bean baste, peanut butter, and more. High-Pressure HS pumps meet high-cleanliness requirements and feature a free-draining flow path that enables them to be cleaned with ease.
• Free-draining flow path for CIP capability
• Easy assembly with self-centering ball cages
• Permanent or rotatable stand for cleaning
• Multiple valve options: ball, mushroom, or flap for different application requirements
• Shear sensitive
• Greater flow - more gallons pumped per SCFM
Applications
• Food and Beverage
• Prepared Food and Sauces
• Poultry and Dairy
• Sweeteners and Acids
• Pharmaceutical and Cosmetics
Saniflo Hygienic (HS) Pump Series
25 mm (1") Saniflo™ Hygienic™ Series Clamped Metal AODD Pump (PS2)
38 mm (1-1/2") Saniflo™ Hygienic™ Series Clamped Metal AODD Pump (PS4)
51 mm (2") Saniflo™ Hygienic™ Series Clamped Metal AODD Pump (PS8)
76 mm (3") Saniflo Hygienic Series Clamped Metal AODD Pump (PS15)
76 mm (3") High-Pressure Saniflo™ Hygienic™ Series Bolted Metal AODD Pump (H1500)
305 products
Saniflo FDA Pumps (Hygienic & Sanitary)
Wilden® Saniflo™ FDA Series AODD Pumps for Hygienic and Sanitary Applications
The Saniflo™ FDA Series pumps are designed for standard food applications that don’t require the Hygienic™ Series (HS) design or clean-in-place (CIP) capability. They are well suited for sanitary applications moving high-acid, high-sugar and high-fat media. With simple installation and robust design, FDA pumps comply with FDA, CE, EC 1935/2004 and ATEX requirements.
Features
• Tri-clamp connections with wingnut clamped design
• Quick breakdown/reassembly for cleaning
• Greater flow - more gallons pumped per SCFM
• Two air distribution system options:
• Pro-Flo® SHIFT: multiple material options, high efficiency, high flow
• Pro-Flo: durable, economical, one material option
Applications
• Food and Beverage
• Prepared Food and Sauces
• Poultry and Dairy
• Sweeteners and Acids
• Pharmaceutical and Cosmetics
FDA Wilden Pump Series
13 mm (1/2") Pro-Flo® SHIFT Saniflo™ FDA Series Clamped Metal AODD Pump
13 mm (1/2") Pro-Flo® Saniflo™ FDA Series Clamped Metal AODD Pump
25 mm (1") Pro-Flo®Saniflo™ FDA Series Clamped Metal AODD Pump
38 mm (1-1/2") Pro-Flo® SHIFT Saniflo™ FDA Series Clamped Metal AODD Pump
38 mm (1-1/2") Pro-Flo® Saniflo™ FDA Series Clamped Metal AODD Pump
51 mm (2") Pro-Flo® SHIFT Saniflo™ FDA Series Clamped Metal AODD Pump
51 mm (2") Pro-Flo® Saniflo™ FDA Series Clamped Metal AODD Pump
76 mm (3") Pro-Flo®SHIFT Saniflo™ FDA Series Clamped Metal AODD Pump
251 products
Accu-Flo Electronic Control Pumps
Wilden® Accu-Flo™ Series AODD Pumps for Electronic Control Applications
Accu-Flo™ Series Air-Operated Double-Diaphragm (AODD) Pumps give you the critical external pump control necessary for exacting applications such as batching. Featuring a direct electrical interface that utilizes electrical impulses to stroke the pump instead of differential pressure, the Accu-Flo Series provides a variable stroke rate that you can easily control as needed. To meet your applications, Accu-Flo Series pumps are available as NEMA 5, NEMA 7 or ATEX-compliant, and come in a variety of voltage options.
Features & Benefits
• Integrated electronic (solenoid) control
• Multiple signal input voltage options: 24V DC, 12V DC, 24 AC and 110V AC
• Proven, robust construction: bolted or clamped
Applications
• Chemical Dosing
• Adaptive Dosing
• Batching Processes
• Blending
• Systems and Skids
Clamped Metal Pumps
6 mm (1/4") Accu-Flo™ Clamped Metal AODD Pump A.025
13 mm (1/2") Accu-Flo™ Clamped Metal AODD Pump A1
25 mm (1") Accu-Flo™ Clamped Metal AODD Pump A2
Clamped Plastic Pumps
6 mm (1/4") Accu-Flo™ Clamped Plastic AODD Pump A.025
13 mm (1/2") Accu-Flo™ Clamped Plastic AODD Pump A1
25 mm (1") Accu-Flo™ Clamped Plastic AODD Pump A2
Bolted Plastic Pumps
6 mm (1/4") Accu-Flo™ Bolted Plastic AODD Pump A25PS
13 mm (1/2") Accu-Flo™ Bolted Plastic AODD Pump A100
25 mm (1") Accu-Flo™ Bolted Plastic AODD Pump A200
13 mm (1/2") Accu-Flo™ Velocity Series Bolted Plastic AODD Pump A150V
6 mm (1/4") Accu-Flo™ Velocity Series Bolted Plastic AODD Pump A2550V
245 products
Turbo-Flo Utility Pumps
Wilden® Turbo-Flo™ AODD Pumps for Utility Applications
Famous for its long life and easy serviceability, the durable Wilden® Turbo-Flo™ Series is the first air distribution system (ADS) that originated in the air-operated double-diaphragm (AODD) pump industry. Though enhancements have been made, these pumps work well in certain applications where quality of the compressed air is a concern. These pumps are easy to maintain, cost effective, and economical. Portable and available in a single-point exhaust option for submersible applications, the Turbo-Flo excels in utilitarian-type applications, including the transfer of water, slurry and more.
• Simple air distribution system design, minimal moving parts
• Clamped design for lightweight and quick maintenance
• Ability to handle dirty air applications
• Single-point exhaust
Applications
• Ship Yards
• Ship Building - Bilge
• Mining Dewater
38 mm (1-1/2") Turbo-Flo™ Clamped Metal AODD Pump T4
Wetted Housings: Aluminum / 17 kg (38 lb) | Cast Iron / 26 kg (57 lb)
Non-Wetted Housings: Center Block: Aluminum, Polypropylene | Air Valve: Brass | Air Chamber: Aluminum
- Air Inlet: 1/2" FNPT | Liquid Inlet: 38mm (1-1/2")
- Liquid Discharge: 38mm (1-1/2")
- Connection Type: NPT / BSPT (Threaded)
- Max Suction Lift Capability: Rubber – 5.49m (18') Dry, 8.53m (28') Wet | TPE – 4.27m (14') Dry, 8.23m (27') Wet | PTFE – 2.74m (9') Dry, 8.53m (28') Wet
- Maximum Flow Rate: Rubber – 288 lpm (76 gpm) | TPE – 307 lpm (81 gpm) | PTFE – 235 lpm (62 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16'')
- Displacement Per Stroke* Rubber – 1.02 L (0.27 gal) | TPE – 1.17 L (0.31 gal) | PTFE – 2.6 L (0.69 gal) | * 1 cycle = 2 strokes
51 mm (2") Turbo-Flo™ Clamped Metal AODD Pump T8
Wetted Housings: Aluminum / 33 kg (72 lb) | Cast Iron / 52 kg (114 lb)
Non-Wetted Housings: Center Block: Aluminum, Polypropylene | Air Valve: Brass | Air Chamber: Aluminum
- Air Inlet: 3/4" FNPT | LIQUID INLET: 51 mm (2")
- Liquid Discharge: 51 mm (2")
- Connection Types: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability: Rubber – 6.4 m (21') Dry, 9.5 m (31') Wet | TPE – 6.1 m (20') Dry, 9.5 m (31') Wet | PTFE – 3.7 m (12') Dry, 9.5 m (31') Wet
- Maximum Flow Rate: Rubber – 617 lpm (163 gpm) | TPE – 613 lpm (162 gpm) | PTFE – 534 lpm (141 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 6.4 mm (1/4'')
- Dispalcement Per Stroke* Rubber – 2.69 L (0.71 gal) | TPE – 2.8 L (0.74 gal) | PTFE – 1.51 L (0.40 gal) | * 1 cycle = 2 strokes
76 mm (3") Turbo-Flo™ Clamped Metal AODD Pump T15
Wetted Housings: Aluminum / 53 kg (116 lb) | Cast Iron / 91 kg (200 lb)
Non-Wetted Housings: Center Block: Aluminum, Polypropylene | Air Valve: Brass | Air Chamber: Aluminum
- Air Inlet: 3/4" FNPT | LIQUID INLET: 76 mm (3")
- Liquid Discharge: 76 mm (3")
- Connection Types: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability: Rubber – 5.5 m (18') Dry, 9.45 m (31') Wet | TPE – 3.49 m (13') Dry, 8.53 m (28') Wet | PTFE – 3.49 m (13') Dry, 8.53 m (28') Wet
- Maximum Flow Rate: Rubber – 878 lpm (232 gpm) | TPE – 845 lpm (223 gpm) | PTFE – 704 lpm (186 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 10 mm (3/8'')
- Dispalcement Per Stroke* Rubber – 5.3 L (1.40 gal) | TPE – 5.4 L (1.43 gal) | PTFE – 3.6 L (0.95 gal) | * 1 cycle = 2 strokes
102 mm (4") Turbo-Flo™ Clamped Metal AODD Pump T20
Wetted Housings: Cast Iron | 231 kg (500 lb)
Non-Wetted Housings: Center Block: Aluminum | Air Valve: Brass | Air Chamber: Aluminum
- Air Inlet: 3/4" FNPT | LIQUID INLET: 102 mm (4")
- Liquid Discharge: 102 mm (4")
- Connection Types: DIN/ANSI (Flanged)
- Maximum Suction Lift Capability: Rubber – 3.66 m (12') Dry, 9.14 m (30') Wet
- Maximum Flow Rate: Rubber – 1,041 lpm (275 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 35 mm (1-3/8'')
- Dispalcement Per Stroke* Rubber – 4.62 L (1.22 gal) | * 1 cycle = 2 strokes
Material Temperature Limits
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
135 products
High Pressure Pumps
Wilden® High-Pressure AODD Pumps
Wilden® High-Pressure Series Air-Operated Double-Diaphragm (AODD) Metal Pumps are equipped with a specialty air distribution system (ADS) that utilizes a double-acting power piston and Duplex technology to intensify fluid discharge pressure. Wilden high-pressure pumps reliably deliver the pressure performance of up to 20.7 bar (300 psig), making them perfect for a wide variety of high-pressure duties, including filtration, chemical sludge transfer and other viscous, solid-laden slurries.
• Simplex and Duplex technology available (depending on size)
• Industry's only 3" high-pressure pump
• Builds up to 300 psi discharge pressure
• Built-in internal pressure amplifier with limited external piping for more robust design
Wilden High-Pressure Series
Wilden High-Pressure Pumps deliver powerful, reliable and ﬂ exible solutions for the most challenging pump applications.
Applications
• Filtration
• Chemical Sludge Transfer
• Solid-Laden Slurries
• Viscous Product Transfer
• Filter Press
• Hygienic Applications
51 products
Stallion Mining Pumps
Wilden® AODD Pumps for Mining Applications
Wilden® Stallion® Series Air-Operated Double-Diaphragm (AODD) Pumps are ideally suited for rugged mining applications thanks to their unique ability to handle solid-laden mining slurries with ease. Furthering the Stallion Series pump’s ability to handle the toughest mining applications is a robust design featuring a large internal clearance and flow-through path for large-solids passage that prevents the pump from clogging. The Stallion Series is also designed with a polyurethane screen base at its inlet to provide additional durability.
Stallion Series technology incorporates an altered ball/seat check-valve assembly to allow for solids passage. Its polyurethane screen base at the inlet gives added durability.
• Clamped design with handles for lightweight portability
• Large internal clearances due to modified ball, seats, diaphragms and shafts to handle solid-laden slurries
• Polyurethane screen base to act as an initial filter to keep larger solids from damaging the pump
• Powered by Pro-Flo® SHIFT air distribution system (ADS)
38 mm (1-1/2") Pro-Flo® SHIFT Stallion® Series Clamped Metal AODD Pump PS4
51 mm (2") Pro-Flo® SHIFT Stallion® Clamped Metal AODD Pump PS8
76 mm (3") Pro-Flo® SHIFT Stallion® Clamped Metal AODD Pump PS15
38 mm (1-1/2") Turbo-Flo™ Stallion® Series Clamped Metal AODD Pump T4
51 mm (2") Turbo-Flo™ Stallion® Series Clamped Metal AODD Pump T8
76 mm (3") Turbo-Flo™ Stallion® Series Clamped Metal AODD Pump T15
Applications
• Dewatering
• Waste Transfer
• Skimmer Systems
• Solid-Laden Fluid Transfer
208 products
Brahma Large Solids Handling Pumps
Wilden® Large Solids Handling AODD Pumps
Legendary Wilden® and Brahma™ Series Air-Operated Double-Diaphragm (AODD) Pumps transfer solid-laden slurries safely and effectively. The Brahma Series utilizes a unique top inlet, bottom discharge orientation and flap valves to allow passage of large-size solids and avoid damage from product entrapment and settling of solids in intermittent-duty applications.
Large internal clearance and flow-through design result in large-solids passage capacity and prevent the pump from clogging. It features bolted construction for superior containment and the ability to pass compressible solids up to 76 mm (3″), depending on pump size.
• Flap valve design for large-solids passage
• Top inlet, bottom discharge for easy transfer of sediment and solid-laden fluids
• Powered by Pro-Flo® SHIFT or Turbo-Flo™ air distribution systems (ADS)
51 mm (2") Pro-Flo® SHIFT Brahma™ Bolted Metal AODD Pump PS810
76 mm (3”) Pro-Flo® SHIFT Brahma™ Bolted Metal AODD Pump PS1510
51 mm (2'') Turbo-Flo™ Brahma™ Bolted Metal AODD Pump T810
76 mm (3'') Turbo-Flo™ Brahma™ Bolted Metal AODD Pump T1510
Applications
• Waste Transfer
• General/Bulk Transfer
• Site Dewatering
• Drilling Mud Transfer
• Sump
• Sludge Transfer
108 products
GPS CSA-Certified Natural Gas Pumps
Wilden® CSA-Certified AODD Pumps for Natural Gas Applications
Since its founding in 1955, Wilden has been a leader in the pump world. In 2006, Wilden partnered with other industry leaders and the Canadian Standards Association (CSA) to develop the ANSI LC 6-2008 standard to regulate natural gas-operated pumps. To bring that safety standard to the oil and gas industry with premium performance, Wilden offers the GPS Series Pumps.
Wilden® GPS Series pumps, equipped with the Pro-Flo® SHIFT Air Distribution System (ADS) and available in bolted metal construction, are certified by the Canadian Standards Association (CSA) to be powered by natural gas and maintain a safe, reliable operation. They are perfect for oil and gas operations where compressed air is not readily accessible but where natural gas is plentiful.
GPS Series pumps utilize the Wilden Pro-Flo SHIFT ADS
• Helps plants save valuable natural gas
• Pro-Flo SHIFT uses 60% less natural gas, without hindering performance
• Greater flow - more gallons pumped per SCFM
13 mm (1/2") CSA-Certified Clamped Metal AODD Pump GPS1
25 mm (1") CSA-Certified Bolted Metal AODD Pump GPS220/GPS230
38mm (1-1/2") CSA-Certified Bolted Metal AODD Pump GPS420/GPS430
51 mm (2") CSA-Certified Bolted Metal AODD Pump GPS820/GPS830
76 mm (3") CSA-Certified Bolted Metal AODD Pump GPS1520/GPS1530
Applications
• Oil & Gas
• Wellsite Transfer
• Wellhead Injection
• Production Steam Transfer
• Glycol Recirculation
48 products
UL Fuel Transfer Pumps
Wilden® UL-Certified AODD Pumps for Fuel Transfer Applications
Wilden® pumps that have been certified to UL 79 standards to meet requirements for fuel transfer applications. Wilden UL-certified pumps can be used when dispensing gas products, fuels, petroleum or any other lubricating applications. UL 79 certified pumps meet the flammable and combustible liquids, National Electric, Automotive and Marine Service Station codes for electrically, hydraulically, or pneumatically driven power-operated pumps. UL 79 certified pumps are also qualified for submersible use in storage tanks providing petroleum products to remote control flammable liquid dispensing devices.
FEATURES & BENEFITS
• Discharge pressures up to 50 psig
• High suction lift
• Energy-efficient Pro-Flo SHIFT Air Distribution System
• Greater flow – more gallons pumped per SCFM
• Portatable and submersible
• Increased on/off reliability
Applications
Fuel transfer applications, such as:
• Lube Oil
• Petrochemical
13 mm (1/2") Pro-Flo® SHIFT Series Clamped Metal AODD Pump PS1
25 mm (1") Pro-Flo® SHIFT Series Bolted Metal AODD Pump PS220/PS230
13 products
Velocity Compact Pumps
Wilden® Velocity Series AODD Pumps for Skids, Systems and Dosing Applications
Wilden's Velocity Series is a compact air-operated double-diaphragm (AODD) pump designed for versatility. Here are some key features:
1. Detachable Mounting Foot: The Velocity Series features a unique detachable mounting foot. This allows the pump to be easily reoriented into either a vertical or horizontal position, making it adaptable for various system configurations and skids.
2. Inlet and Discharge Port Options: With multiple inlet and discharge port options, the Velocity Series provides flexibility to meet different application requirements. This is crucial for systems and skids where space constraints or specific piping arrangements are considerations.
3. Bore-Seal Design: The pump incorporates a bore-seal design, which eliminates leaks resulting from torque decay. This ensures reliable performance and prevents fluid leakage during operation.
4. Dry Suction Lift Capability: The Velocity Series can achieve a dry suction lift capability of up to 5.1 meters (16.9 feet). This feature enhances priming under a wide range of system conditions, making it suitable for various applications.
5. Startup Pressures: The pump can operate at startup pressures as low as 1.03 bar (15 psi), allowing for efficient and reliable performance.
6 mm (1/4") Velocity Series Bolted Plastic AODD Pump V2550
4.3 m (14.2') dry suction lift for better priming
Interchangeable footprint with previous Wilden designs (P.025, P25)
13 mm (1/2") Velocity Series Bolted Plastic AODD Pump V150
5.1 m (16.9') dry suction lift for better priming
Interchangeable footprint with previous Wilden designs (P1, P100)
Wilden® Velocity Series AODD Pump
• Full bore-seal design that eliminates potential effects of torque decay
• Numerous mounting configurations to fit any application
• Detachable foot, spring loaded checks, 4-port design
• High suction lift for reliable operation and any air pressure
• Low startup pressure
Applications
• Chemical Dosing
• Paints and Inks
• Surface Treatment
• Clean-in-Place (CIP) Systems
• Lube Oil
• Commercial Laundry
• Additive Injection
• Sampling
32 products
Diaphragms & Spare Repair Parts
Wilden Pump Repair Parts - Air Operated Double Diaphragm Pumps (AODD)
Diaphragms, O-Rings, Seals, Balls, Valves, Seats, Pistons, Chambers, Manifolds, Muffler, Gaskets, Screws, Washers, Nuts, Pipe Plug, Clamps, End Caps, Elbows, Bolts, Center Sections, Bushings, Shaft, Air Valve Assemblies, Spools, T-Sections, Covers, Studs & More!
Maintaining peak performance for your air-operated double-diaphragm (AODD) pump is crucial, and Wilden® offers an impressive range of diaphragms to achieve just that. Let’s dive into the details:

AODD Pump Operation:
- AODD pumps operate using two diaphragms driven by compressed air. As one diaphragm fills with air, it forces fluid out of one chamber while simultaneously filling the second chamber with fluid.
- These pumps are versatile and rugged, making them ideal for various applications, including oil and gas.
Wilden Diaphragms:
- Wilden, as the inventors of AODD pump technology, provides the largest selection of diaphragms globally.
- Their diaphragms enhance pump performance, offering long flex life, labor savings, and superior durability.
- Whether you’re dealing with aggressive chemicals, highly abrasive materials, or extreme temperatures, Wilden has a diaphragm tailored to your specific needs.
- Consider factors like chemical compatibility, life, flow, suction lift, temperature limits, and abrasion resistance when selecting the right diaphragm for your application.
Remember, with Wilden, you’re getting quality diaphragms that ensure safe, efficient, and trouble-free pump operation. Accept nothing less!
How to Select Your Diaphragm
Determining the correct diaphragm requires carefully identifying and factoring all process and application parameters into the analysis. A number of factors must be taken into account when choosing the proper diaphragm suitable for a specific application.
Chemical Resistance - Material compatibility with the fluid being pumped.
Temperature Ranges - Capability to remain flexible in low temperatures and not deteriorate in high temperatures.
Abrasion Resistance - Ability to withstand wear and friction from contract with solids and particles in the fluid being pumped.
Sanitary Standards - Requirements that the diaphragm comply with hygienic or sanitary standards.
Flex Life - Expected longevity of the diaphragm before requiring replacement.
Cost - Total cost of ownership determined by multiple factors such as initial price, rated flex life for the application and costs of downtime and diaphragm replacement labor.
To help you decide which diaphragm is right for you, start by reviewing Wilden's available diaphragm materials and diaphragm designs.
2,166 products
Repair Kits - Air End / Wet End Spare Parts
Wilden® Repair Kits and Parts for Air-Operated Double-Diaphragm (AODD) Pumps and Air Distribution Systems (ADS)
Maximize & Streamline Maintenance Repairs with 100% Genuine Wilden Kits
Wilden® Wet and Air Repair Kits for AODD pumps have been designed to help properly maintain the health and performance of your Wilden pump. Always use only authentic Wilden Air Kits and Wet Kits when repairing or maintaining your Wilden products to preserve optimal performance and factory warranties.
Have an older Wilden diaphragm pump? We also offers Retrofit Kits for many models, which allow you to upgrade your existing AODD pumps. Numerous other spare parts are available on our website outside of the normal or traditional repair kits.
Air End Kits
Wilden® Air Repair Kits contain genuine Wilden replacements parts for the air side of an AODD pump. These diaphragm pump kits are available for both Pro-Flo® or Pro-Flo® SHIFT Series pumps. The Air Kits primarily contain all of the air-side (Air End) wear components, consisting of gaskets, O-rings, air valve spool, pilot spool and others spare parts.
• Replaces the Air Distribution System (ADS) Kit
• Contains reduced number of parts, including elimination of the air valve assembly and muffler plate
• All Air Kits include the air valve spool
• Vacuum-sealed to maintain parts integrity and cleanliness
• Air Kits ordering requires the following information: ADS model, Pump size, Pump series/configuration, Wetted material, Air valve material, ADS option.
Wet End Kit
Wilden® Wet Repair Kits contain 100% genuine Wilden replacements parts for the fluid-contacting side of an AODD pump. These Wet End kits (Liquid Side) are available for either bolted or clamped pumps. The kits typically contain the wet-wear components, such as diaphragms, balls, seats, gaskets and o-rings (if required).
• Replaces the Elastomer Kit
• Includes only elastomers located on the wet side of the pump – including diaphragms, balls, seats, gaskets and O-rings (if required) – to eliminate part duplication
• Vacuum-sealed to maintain parts integrity and cleanliness
• Wet Kit ordering requires only the following information: Pump size, Pump series/configuration, Wetted material and Diaphragm material.
771 products
Surge Dampeners & Accessories
Wilden Surge Dampeners, Diaphragm Pump Accessories - Protect your investment and refine your process.
Wilden® Equalizer® Surge Dampeners for AODD Pumps
Equalizer® Surge Dampeners are engineered to reduce fluid pressure and flow fluctuations that are inherent in air-operated double-diaphragm (AODD) pumps, providing a smoother discharge flow. This function is critical in applications that need to minimize vibration and control pipe hammer which protects the piping system as well as downstream instrumentation.
The versatility of air-operated double-diaphragm (AODD) pumps makes them ideal for use in applications ranging from those found in mining to chemical processing. However, some fluid-handling applications cannot be completed successfully if pulsation exists in the fluid flow. Wilden's® Equalizer® Surge Dampener SD Series provides the solution.
• Minimize pressure fluctuation
• Prevent water hammer and associated damage
• Self-adjusting to varying system pressures
• Minimize spare parts inventory
• Large solids capacity
• Can be configured to meet ATEX II 2 GD X requirements
Wilden-SD-Equalizer
The Equalizer® Surge Dampener SD Series creates laminar (constant) process flow by reducing or eliminating pump pulsation, which is also critical in retaining pump and piping integrity. SD Equalizers use the same air as the pump to counter the flow rate and discharge-pressure changes within the system. This non-pulsating flow also helps reduce maintenance and repair costs. SD Equalizes also are compliant with ATEX II 2 GD X requirements for use in potentially explosive atmospheres.
Applications
• Applications requiring a laminar flow or minimize "splashing" - CIP systems, Drum Filling & Package Filling
• Pumping from a mix tank to balance tank
• Applications that have flow meters or other precise in-line instrumentation
• Applications that have quick closing valves
• Discharge piping is not properly secured (PVC/Plastic Piping)
Wilden® Air-Operated Double-Diaphragm Pump Accessories
- Wilden® accessory products add value to your liquid process and expand the application range of your Wilden pumps by augmenting the performance and/or utility of the pump. Use only genuine Wilden accessories to keep your AODD pumps running at peak performance while meeting warranty requirements and expanding their operations and utility.
- Wil-Gard™ - detects and notifies plant personnel when a diaphragm has ruptured to prevent further damage to pump
- Pump Cycle Monitor (PCMI) - counts pump cycles by sensing the presence of the air valve spool
- Drum Pump Kit - enables Wilden 6 mm (1/4”) and 13 mm (1/2”) pumps to adapt directly to drums for cost-effective, efficient liquid transfer
503 products