GA7-1-1 / 2

Burks Series GA7-1-1/2 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 GA7-1-1/2 Series Close-Coupled Centrifugal Pumps

Higher Capacity Performance for Demanding Water Transfer Applications

The Burks GA7-1-1/2 Series close-coupled centrifugal pumps are engineered for commercial, industrial, municipal, and OEM applications requiring increased flow rates, dependable pressure performance, and continuous-duty reliability. Built with Burks' proven end suction hydraulic design, these pumps provide efficient fluid handling for water circulation, pressure boosting, liquid transfer, cooling systems, and industrial process applications.

Combining a compact close-coupled configuration with robust construction and high-performance hydraulics, the GA7-1-1/2 Series offers an ideal balance of efficiency, serviceability, and long-term value. These pumps are designed to support larger system demands while maintaining a space-saving footprint.

Key Features

• Close-coupled end suction centrifugal pump design

• Compact installation footprint

• Four-position casing for flexible discharge orientation

• Back pull-out construction for simplified maintenance

• High-efficiency enclosed bronze impeller

• Mechanical shaft seal for dependable leak protection

• Bronze shaft sleeve helps resist wear and corrosion

• Factory tested for hydraulic performance and quality assurance

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

• Designed for continuous-duty commercial and industrial service

Performance and Connection Sizes

The GA7-1-1/2 Series is designed for higher-flow applications where reliable operation and system flexibility are essential.

Performance Highlights

• Capacities up to 280 GPM

• Heads up to 150 feet

• Horsepower ranges from 1 HP to 10 HP

• 2-1/2" suction connection

• 1-1/2" 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 2-1/2-inch suction connection promotes efficient fluid entry and helps reduce inlet losses, while the 1-1/2-inch discharge connection delivers the pressure and flow required for demanding commercial and industrial applications.

NPT Threaded Connections

The GA7-1-1/2 Series is commonly supplied with NPT threaded connections, providing a practical and economical solution for a wide variety of fluid-handling systems.

Benefits of NPT Connections

• Cost-effective installation

• Simplified piping modifications

• Compact system layout

• Easy pump replacement

• Ideal for OEM equipment and packaged systems

• Reduced installation and maintenance costs

Designed for Easy Maintenance

The GA7-1-1/2 Series features Burks' proven back pull-out design, allowing maintenance personnel to access the rotating assembly without disconnecting piping. This reduces downtime, simplifies repairs, and improves service efficiency.

The four-position casing design also provides installation flexibility, making it easier to accommodate varying piping configurations.

Durable Construction

Designed for long-term reliability, the GA7-1-1/2 Series utilizes quality materials throughout the pump assembly. The enclosed bronze impeller provides efficient hydraulic performance, while the bronze shaft sleeve protects critical shaft surfaces from wear and corrosion.

Available construction options include:

• Bronze-Fitted Cast Iron

• All Bronze

• All Iron

These material configurations allow the pump to be matched to specific application requirements and fluid characteristics.

Typical Applications

• HVAC heating and cooling systems

• Chilled water circulation

• Hot water recirculation

• Water transfer systems

• Pressure boosting applications

• Industrial process water

• Cooling tower systems

• Commercial building services

• Manufacturing facilities

• Irrigation systems

• OEM equipment packages

Why Choose the Burks GA7-1-1/2 Series?

The Burks GA7-1-1/2 Series delivers increased flow capacity, dependable hydraulic performance, and maintenance-friendly operation in a compact close-coupled design. With capacities up to 280 GPM, horsepower options up to 10 HP, and durable Burks construction, these pumps provide a reliable solution for commercial and industrial facilities seeking efficient fluid handling and long-term operational value.