G5-1-1 / 4

Burks Series G5-1-1/4 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 G5-1-1/4 Series Close-Coupled Centrifugal Pumps

Compact Design. Reliable Performance.

The Burks G5-1-1/4 Series close-coupled centrifugal pumps are designed to deliver dependable performance in commercial, industrial, and OEM fluid handling applications. Combining a space-saving footprint with durable construction and efficient hydraulics, these pumps provide a reliable solution for water circulation, pressure boosting, liquid transfer, and process system operation.

Built for continuous-duty service, the G5-1-1/4 Series offers easy installation, simplified maintenance, and long-term reliability. With capacities up to 80 GPM and heads up to 135 feet, these pumps are well suited for a wide range of clean water and light industrial applications.

Key Features

• Compact close-coupled end suction design

• Four-position casing for installation flexibility

• Back pull-out construction allows servicing without disconnecting piping

• Enclosed bronze impeller for maximum hydraulic efficiency

• Replaceable casing wear ring reduces maintenance costs

• Self-adjusting mechanical shaft seal for dependable leak protection

• Stainless steel shaft for corrosion resistance and long service life

• Factory-tested performance for quality assurance

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

Performance Specifications

• Capacities up to 80 GPM

• Heads up to 135 feet

• Maximum operating temperature of 225°F with standard sealing arrangements

• Inlet pressures up to 100 PSI

• Casing working pressures up to 200 PSI

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

• 3500 RPM operation for high-performance applications

Optional High-Temperature Design

For demanding hot water and heat transfer applications, the G5-1-1/4 Series is available with an optional Jacketed Seal Cavity design. This configuration helps extend mechanical seal life and supports applications involving hot oil, hot water, and other elevated-temperature fluids.

Typical Applications

• HVAC heating and cooling systems

• Booster pump systems

• Water circulation and transfer

• Industrial process water systems

• Cooling water applications

• Commercial building services

• OEM equipment

• Hot water recirculation systems

• General-purpose fluid handling

Why Choose the Burks G5-1-1/4 Series?

The Burks G5-1-1/4 Series delivers the ideal balance of performance, durability, and serviceability. Its compact design minimizes installation space while providing the robust construction and efficient operation required for demanding commercial and industrial environments. Whether used for circulation, transfer, or boosting applications, the G5-1-1/4 Series offers reliable performance and long-term value.