G7-2-1 / 2

Burks Series G7-2-1/2 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 G7-2-1/2 Series Close-Coupled Centrifugal Pumps

High-Flow Performance for Demanding Commercial and Industrial Applications

The Burks G7-2-1/2 Series close-coupled centrifugal pumps are engineered to handle larger flow requirements in commercial, industrial, municipal, and OEM fluid-handling systems. Built with Burks' proven hydraulic design and rugged construction, this series delivers dependable performance for water circulation, transfer, boosting, cooling, and process applications.

Featuring a compact close-coupled design and expanded port sizes, the G7-2-1/2 Series provides the capacity needed for larger systems without sacrificing installation flexibility. These pumps are ideal for facilities seeking efficient operation, ease of maintenance, and long-term reliability.

Key Features

• Close-coupled end suction centrifugal pump design

• Available with NPT threaded and flanged connection options

• High-efficiency enclosed bronze impeller

• Four-position casing for flexible installation

• Back pull-out construction for simplified maintenance

• Replaceable casing wear ring helps extend pump life

• Self-adjusting mechanical shaft seal

• Stainless steel shaft for corrosion resistance and durability

• Factory tested for performance and reliability

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

Performance and Connection Sizes

The G7-2-1/2 Series is designed for high-capacity fluid transfer and circulation applications where larger flow volumes are required.

Performance Highlights

• Capacities up to 500 GPM

• Heads up to 150 feet

• Horsepower ranges from 3 HP to 15 HP

• 3" suction connection

• 2-1/2" 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

• Available in single-phase and three-phase motor configurations

The large 3-inch suction connection helps maximize hydraulic efficiency by delivering smooth fluid flow into the pump, while the 2-1/2-inch discharge connection supports higher flow rates for larger piping systems and demanding operating conditions.

Available Connection Styles

The G7-2-1/2 Series is available in both NPT threaded and flanged configurations, allowing engineers and contractors to match the pump to the needs of the application.

NPT Threaded Connections

Threaded models provide a practical solution for packaged equipment, booster systems, and commercial applications where ease of installation and lower installation costs are important.

Benefits of NPT Connections

• Cost-effective installation

• Simplified piping modifications

• Compact system footprint

• Easy pump replacement

• Ideal for OEM and equipment-package applications

• Reduced installation complexity

Flanged Connections

Flanged models are designed for larger systems and higher flow applications where secure piping support and ease of maintenance are critical.

Benefits of Flanged Connections

• Improved piping alignment

• Enhanced support for larger diameter piping

• Easier pump removal during maintenance

• Increased reliability in high-flow systems

• Ideal for HVAC, manufacturing, municipal, and process applications

• Simplified long-term serviceability

Designed for Easy Maintenance

The G7-2-1/2 Series incorporates Burks' proven back pull-out design, allowing service personnel to remove the rotating assembly without disconnecting system piping. This feature minimizes downtime and reduces maintenance labor costs.

A replaceable casing wear ring protects critical pump components from premature wear, helping maintain efficiency and prolong equipment life.

Optional High-Temperature Service

For applications involving hot water, heat transfer fluids, and thermal oils, the G7-2-1/2 Series is available with an optional Jacketed Seal Cavity design. This configuration helps extend seal life and improve reliability in elevated-temperature systems.

Typical Applications

• HVAC heating and cooling systems

• Chilled water circulation

• Cooling tower systems

• Water transfer and distribution

• Booster pump systems

• Industrial process water

• Manufacturing facilities

• Municipal water systems

• Irrigation systems

• Commercial building services

• OEM equipment packages

Why Choose the Burks G7-2-1/2 Series?

The Burks G7-2-1/2 Series combines flow capacities up to 500 GPM, horsepower options from 3 to 15 HP, and rugged Burks construction in a compact, close-coupled design. Available with both threaded and flanged connections, these pumps offer the flexibility, performance, and dependability required for demanding commercial and industrial fluid-handling applications. Whether installed in a cooling system, water distribution network, or process operation, the G7-2-1/2 Series is built to deliver reliable service year after year.