GA5-1-1 / 4

Burks Series GA5-1-1/4 close coupled centrifugal pumps offer motor sizes from 1/3 to 10 HP, and are available in 1750 and 3500 RPM with capacities to 360 GPM and heads to 230 feet. These reliable pumps operate to maximum pumping temperatures of 225°F. Series GA models are rated for use on inlet pressures to 100 PSI, and case working pressures to 200 PSI, with suction from 1 ¼" to 2 ½" NPT, and discharge from 1" to 2" NPT. Pumps feature standard bronze fitted cast iron construction, and are also available in all bronze or all iron. Noryl® impellers are available on the GA5-1 and 1 ¼", and the GA6-1-1/4 models. Each Burks GA pump is factory tested to meet Hydraulic Institute standards.

Burks GA5-1-1/4 Series Close-Coupled Centrifugal Pumps

Compact Performance for Commercial and Industrial Fluid Handling

The Burks GA5-1-1/4 Series close-coupled centrifugal pumps are designed to provide reliable, efficient fluid movement in commercial, industrial, OEM, and light municipal applications. Combining a compact footprint with proven hydraulic performance, these pumps are ideal for water circulation, pressure boosting, liquid transfer, and equipment package applications where space and reliability are equally important.

Engineered for continuous-duty operation, the GA5-1-1/4 Series offers easy installation, dependable performance, and simplified maintenance, making it a practical solution for a wide range of pumping requirements.

Key Features

• Close-coupled end suction centrifugal pump design

• Compact footprint for space-saving installations

• Four-position casing for installation flexibility

• Back pull-out construction simplifies maintenance

• High-efficiency enclosed bronze impeller

• Mechanical shaft seal for reliable leak protection

• Bronze shaft sleeve helps minimize wear and corrosion

• Factory tested for dependable performance

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

• Continuous-duty motor design for long service life

Performance and Connection Sizes

The GA5-1-1/4 Series is designed for lower- to medium-flow applications requiring dependable performance and efficient operation.

Performance Highlights

• Capacities up to 80 GPM

• Heads up to 135 feet

• Horsepower ranges from 1/3 HP to 3 HP

• 1-1/2" suction connection

• 1-1/4" discharge connection

• Maximum liquid temperatures up to 225°F

• Inlet pressures up to 100 PSI

• Casing working pressures up to 200 PSI

• Available in 3500 RPM configurations

• Single-phase and three-phase motor options available

The 1-1/2-inch suction connection provides smooth fluid entry for efficient operation, while the 1-1/4-inch discharge connection delivers dependable pressure performance for smaller circulation and transfer systems.

NPT Threaded Connections

The GA5-1-1/4 Series is commonly supplied with NPT threaded connections, making installation straightforward and cost-effective for commercial and industrial applications.

Benefits of NPT Connections

• Lower installation costs

• Compact piping arrangements

• Simplified system modifications

• Easy pump replacement

• Ideal for OEM equipment and packaged systems

• Reduced installation complexity

Designed for Easy Maintenance

The GA5-1-1/4 Series incorporates Burks' proven back pull-out design, allowing the rotating assembly to be serviced without disturbing the pump casing or piping connections. This helps reduce downtime and speeds routine maintenance procedures.

Its four-position casing design also provides flexibility when adapting the pump to existing piping systems or equipment layouts.

Durable Construction

Built to provide years of dependable service, the GA5-1-1/4 Series utilizes high-quality materials and precision manufacturing throughout the pump assembly. The enclosed bronze impeller delivers efficient hydraulic performance, while the bronze shaft sleeve helps protect critical components from wear and corrosion.

Available material options include:

• Bronze-Fitted Cast Iron

• All Bronze

• All Iron

These construction choices allow the pump to be matched to specific fluid and application requirements.

Typical Applications

• HVAC heating and cooling systems

• Water circulation systems

• Pressure boosting applications

• Cooling equipment

• OEM equipment packages

• Commercial building services

• Water transfer operations

• Industrial process water

• Irrigation systems

• General-purpose fluid handling

Why Choose the Burks GA5-1-1/4 Series?

The Burks GA5-1-1/4 Series combines compact design, reliable performance, and maintenance-friendly construction in a versatile centrifugal pump package. With capacities up to 80 GPM, horsepower ratings from 1/3 to 3 HP, and durable Burks engineering, these pumps provide an economical and dependable solution for commercial and industrial fluid-handling applications where space, efficiency, and reliability matter most.