G6-2-1 / 2

Burks Series G6-2-1/2 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 G6-2-1/2 Series Close-Coupled Centrifugal Pumps

Maximum Flow Capacity with Flexible Connection Options

The Burks G6-2-1/2 Series close-coupled centrifugal pumps are designed for high-volume fluid handling in commercial, industrial, municipal, and OEM applications. Engineered with the proven reliability of Burks pump technology, this series delivers exceptional hydraulic performance, rugged durability, and installation flexibility for demanding water transfer and circulation systems.

Combining a compact close-coupled footprint with larger suction and discharge connections, the G6-2-1/2 Series is ideal for applications requiring increased flow rates without the added complexity of a frame-mounted pump. Whether used in HVAC systems, water distribution networks, cooling towers, or industrial process systems, these pumps provide dependable operation and long service life.

Key Features

• Close-coupled end suction centrifugal pump design

• Available with NPT threaded or flanged connections

• High-efficiency enclosed bronze impeller

• Four-position casing for flexible discharge orientation

• Back pull-out design allows maintenance without disturbing system piping

• Replaceable casing wear ring helps maintain long-term efficiency

• Mechanical shaft seal for dependable leak protection

• Stainless steel shaft for enhanced corrosion resistance

• Factory tested for performance and quality assurance

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

Performance and Connection Sizes

The G6-2-1/2 Series is designed for larger-capacity pumping systems and applications requiring substantial fluid movement.

Performance Highlights:

• 3" suction connection

• 2-1/2" discharge connection

• High-capacity flow performance for commercial and industrial systems

• Maximum liquid temperatures up to 225°F with standard seals

• Inlet pressures up to 100 PSI

• Casing working pressures up to 200 PSI

• Available with single-phase and three-phase motor options

• Continuous-duty operation for demanding service conditions

NPT Threaded Connections

NPT-threaded models provide a practical and economical solution for installations where threaded piping systems are preferred. These configurations are commonly used in OEM equipment, packaged systems, commercial mechanical rooms, and water transfer applications where installation simplicity is important.

Benefits of NPT Connections:

• Cost-effective installation

• Simplified piping modifications

• Compact overall footprint

• Easy maintenance and replacement

• Ideal for equipment skids and packaged systems

• Suitable for commercial and light industrial installations

Flanged Connections

For larger piping systems and higher-flow applications, the G6-2-1/2 Series is available with flanged connections. Flanged models provide enhanced piping support and easier alignment while simplifying pump removal during maintenance procedures.

Benefits of Flanged Connections:

• Secure, reliable piping connections

• Improved support for heavier piping systems

• Easier alignment during installation

• Simplified pump removal and servicing

• Ideal for high-flow HVAC and industrial systems

• Preferred for institutional, municipal, and manufacturing facilities

Built for Easy Maintenance

Like all Burks close-coupled centrifugal pumps, the G6-2-1/2 Series is designed to minimize downtime and maintenance costs. The back pull-out construction allows service personnel to remove the rotating assembly without disconnecting piping, significantly reducing labor requirements and system interruptions.

The replaceable casing wear ring further protects the pump casing from wear, helping maintain pump efficiency and extending equipment life.

Optional High-Temperature Service

For hot water circulation, thermal fluid systems, and heat transfer applications, the G6-2-1/2 Series can be supplied with an optional Jacketed Seal Cavity. This design helps protect the mechanical seal from excessive temperatures while improving reliability and extending seal life in demanding thermal applications.

Typical Applications

• HVAC heating and cooling systems

• Cooling tower circulation

• Water transfer and distribution

• Industrial process water systems

• Booster and pressure maintenance systems

• Municipal water applications

• Manufacturing facilities

• Irrigation systems

• Commercial and institutional buildings

• OEM pumping packages

Why Choose the Burks G6-2-1/2 Series?

The Burks G6-2-1/2 Series is designed for customers who need greater system flow capacity while maintaining the installation advantages of a close-coupled pump. With large 3-inch suction and 2-1/2-inch discharge connections, multiple connection configurations, and proven Burks durability, this series provides an efficient, reliable, and easy-to-maintain solution for demanding commercial and industrial fluid-handling applications.