G7A-2

Burks Series G7A-2 close coupled centrifugal pumps are available in 1750 RPM with capacities to 1100 GPM, heads to 95 feet, and in 3500 RPM with capacities to 950 GPM, heads to 380 feet. These rugged pumps allow maximum pumping temperatures to 225°F; pump models with the optional MJ Jacketed Seal® allow temperatures to 500°F. Burks Series G pumps accept inlet pressure to 100 PSI, case working pressure to 200 PSI, and suction from 1 ½" to 5", with discharge from 1 ¼" to 4".

All Series G Models feature standard construction bronze fitted cast iron, and are also available in all bronze or all iron. Flanged casing is available on 2" and 2 ½" pumps; 3" and 4" pumps are flanged only. And every Burks pump is factory tested to meet stringent Hydraulic Institute standards.

Burks G7A-2 Series Frame-Mounted Centrifugal Pumps

Heavy-Duty Performance for High-Capacity Fluid Handling

The Burks G7A-2 Series frame-mounted centrifugal pumps are engineered for commercial, industrial, municipal, and process applications that demand higher flow rates, dependable operation, and easy maintenance. Designed with a rugged power frame and flexible coupling arrangement, the G7A-2 Series delivers greater durability and serviceability than close-coupled configurations, making it an excellent choice for continuous-duty pumping systems.

Built to handle demanding operating conditions, the G7A-2 Series combines efficient hydraulic performance with robust construction, providing reliable service in water circulation, booster systems, cooling towers, process water transfer, and industrial fluid handling applications.

Key Features

• Heavy-duty frame-mounted end suction centrifugal pump design

• Flexible coupled construction for enhanced serviceability

• High-efficiency enclosed bronze impeller

• Back pull-out design allows servicing without disturbing piping

• Replaceable casing wear ring helps maintain long-term efficiency

• Self-adjusting mechanical seal for dependable leak protection

• Rugged bearing frame designed for continuous-duty operation

• Stainless steel shaft for corrosion resistance and durability

• Factory tested for hydraulic performance and reliability

• Available in bronze-fitted, all-bronze, and all-iron construction options

Performance and Connection Sizes

The G7A-2 Series is designed for higher-flow commercial and industrial applications where reliability and long equipment life are essential.

Performance Highlights

• Capacities up to 400 GPM

• Heads up to 145 feet

• Horsepower ranges from 2 HP to 15 HP

• 3" suction connection

• 2" discharge connection

• Maximum liquid temperatures up to 225°F with standard seals

• Inlet pressures up to 100 PSI

• Casing working pressures up to 200 PSI

• Continuous-duty operation

• Suitable for demanding industrial and commercial service

The 3-inch suction connection promotes smooth liquid entry into the pump, while the 2-inch discharge provides the pressure and flow characteristics required for larger circulation and transfer systems.

NPT Threaded and Flanged Connections

The G7A-2 Series is available in both threaded and flanged configurations to accommodate a variety of piping systems and installation requirements.

NPT Threaded Connections

Threaded models provide a compact and cost-effective installation option for commercial systems, equipment packages, and general industrial applications.

Benefits of NPT Connections

• Economical installation

• Simplified piping modifications

• Compact footprint

• Easier system integration

• Ideal for OEM and packaged equipment applications

Flanged Connections

Flanged models are preferred for larger piping systems, higher flow applications, and installations where routine maintenance access is important.

Benefits of Flanged Connections

• Improved piping support and alignment

• Easier pump removal and replacement

• Enhanced reliability in larger systems

• Ideal for HVAC, manufacturing, and municipal applications

• Simplified long-term maintenance

Designed for Easy Maintenance

The G7A-2 Series incorporates Burks' proven back pull-out construction, allowing access to the rotating assembly without disconnecting piping. This reduces downtime, simplifies repairs, and lowers maintenance costs.

The frame-mounted design also allows the motor, coupling, bearings, and hydraulic components to be serviced independently, making the G7A-2 Series particularly attractive for facilities focused on long-term lifecycle value.

Optional High-Temperature Service

For applications involving hot water, thermal oils, and heat transfer fluids, the G7A-2 Series can be supplied with a Jacketed Seal Cavity option. This design helps protect the mechanical seal from elevated temperatures and extends seal life in demanding thermal applications.

Typical Applications

• HVAC heating and cooling systems

• Cooling tower circulation

• Chilled water systems

• Water transfer and distribution

• Industrial process water

• Pressure boosting systems

• Manufacturing facilities

• Municipal water systems

• Irrigation systems

• Commercial building services

• General industrial fluid handling

Why Choose the Burks G7A-2 Series?

The Burks G7A-2 Series combines rugged frame-mounted construction, flow rates up to 400 GPM, horsepower options from 2 to 15 HP, and easy maintenance accessibility in a dependable industrial pumping platform. With flexible connection options, proven hydraulic performance, and long-term durability, the G7A-2 Series delivers the reliability and value required for demanding commercial and industrial applications.