GA7-1-1 / 4

Burks Series GA7-1-1/4 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 GA7-1-1/4 Series Close-Coupled Centrifugal Pumps

Increased Capacity for Commercial and Industrial Fluid Handling

The Burks GA7-1-1/4 Series close-coupled centrifugal pumps are designed for applications requiring higher flow rates, dependable pressure performance, and reliable continuous-duty operation. Engineered with Burks' proven hydraulic technology, these pumps provide efficient fluid movement for water circulation, transfer, pressure boosting, cooling systems, and process applications.

Combining a compact close-coupled design with robust construction, the GA7-1-1/4 Series offers an excellent balance of performance, installation flexibility, and ease of maintenance. These pumps are ideal for facilities seeking greater hydraulic capacity while maintaining a relatively small equipment footprint.

Key Features

• Close-coupled end suction centrifugal pump design

• Compact footprint for efficient equipment room utilization

• Four-position casing for flexible discharge orientation

• Back pull-out construction simplifies maintenance procedures

• Enclosed bronze impeller for maximum hydraulic efficiency

• Mechanical shaft seal for dependable leak protection

• Bronze shaft sleeve helps prevent shaft wear and corrosion

• Factory tested for quality and performance assurance

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

• Designed for continuous-duty commercial and industrial service

Performance and Connection Sizes

The GA7-1-1/4 Series is built for applications that require greater flow and head capabilities while maintaining the simplicity of a close-coupled design.

Performance Highlights

• Capacities up to 200 GPM

• Heads up to 150 feet

• Horsepower ranges from 1 HP to 7.5 HP

• 2-1/2" 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 oversized 2-1/2-inch suction connection promotes smooth fluid entry and improved hydraulic efficiency, while the 1-1/4-inch discharge connection provides the pressure needed for demanding circulation and transfer applications.

NPT Threaded Connections

The GA7-1-1/4 Series is typically supplied with NPT threaded connections, providing a cost-effective and straightforward installation solution for commercial and industrial systems.

Benefits of NPT Connections

• Lower installation costs

• Compact piping arrangement

• Simplified system modifications

• Easier pump replacement

• Reduced maintenance complexity

• Ideal for OEM equipment and packaged systems

Designed for Easy Maintenance

Maintenance is simplified through Burks' proven back pull-out design, allowing service personnel to remove the rotating assembly without disconnecting piping. This helps reduce downtime and makes routine inspections, seal replacement, and repairs faster and more efficient.

The four-position casing also provides installation flexibility, making the pump easier to adapt to existing piping layouts.

Durable Construction

Built for long service life, the GA7-1-1/4 Series utilizes premium materials throughout the pump assembly. The enclosed bronze impeller delivers efficient hydraulic performance, while the bronze shaft sleeve protects critical shaft surfaces from wear and corrosion in demanding operating environments.

Available material configurations include:

• Bronze-Fitted Cast Iron

• All Bronze

• All Iron

These options allow users to match pump construction to the fluid being handled and the application's specific operating requirements.

Typical Applications

• HVAC heating and cooling systems

• Chilled water circulation

• Hot water recirculation

• Water transfer systems

• Pressure boosting applications

• Industrial process water

• Commercial building services

• Cooling equipment

• Manufacturing facilities

• OEM equipment packages

• General fluid handling operations

Why Choose the Burks GA7-1-1/4 Series?

The Burks GA7-1-1/4 Series delivers higher flow capacities and stronger hydraulic performance while maintaining the compact footprint and simplicity of a close-coupled centrifugal pump. With capacities up to 200 GPM, horsepower options up to 7.5 HP, durable construction, and proven Burks reliability, this series provides an efficient and dependable solution for a wide range of commercial and industrial pumping applications.