GNC

Burks Series GNC Base Mounted 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. The base mounted pump models are rated for use on inlet pressure to 100 PSI and in case working pressures to 200 PSI, with suction sizes from 1 ½" to 5", and discharge sizes from 1 ¼" to 4".

Burks GNC Series Frame-Mounted Centrifugal Pumps

Heavy-Duty Industrial Pumps Built for Maximum Reliability

The Burks GNC Series frame-mounted centrifugal pumps are engineered for demanding commercial, industrial, municipal, and process applications where dependable operation and long service life are essential. Featuring a rugged bearing frame, flexible motor coupling, and robust hydraulic design, the GNC Series delivers exceptional performance for water circulation, liquid transfer, pressure boosting, cooling systems, and industrial process duties.

Designed for continuous-duty operation, GNC pumps provide the durability and serviceability needed for facilities that cannot afford unexpected downtime. Their frame-mounted construction allows the motor and pump to be serviced independently, making the GNC Series an excellent choice for long-term lifecycle value.

Key Features

• Heavy-duty frame-mounted end suction centrifugal pump design

• Available in multiple hydraulic sizes and configurations

• Rugged radial split casing construction

• Back pull-out design allows maintenance without disconnecting piping

• Centerline discharge minimizes piping strain

• High-efficiency enclosed bronze impeller

• Replaceable casing wear ring protects hydraulic components

• Renewable bronze shaft sleeve helps resist wear and corrosion

• Heavy-duty grease-lubricated bearings for long service life

• Mechanical shaft seal with carbon and ceramic sealing faces

• Factory tested for performance and reliability

• Available in bronze-fitted, all-bronze, all-iron, and specialty material configurations

Performance Capabilities

The GNC Series is designed to serve a broad range of commercial and industrial pumping requirements with multiple hydraulic sizes and motor configurations available.

Performance Highlights

• Capacities up to 1,100 GPM

• Heads up to 380 feet

• Horsepower ranges from 1 HP to 75 HP

• Available with suction connections from 2-1/2" through 5"

• Available with discharge connections from 2" through 4"

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

• Inlet pressures up to 100 PSI

• Casing working pressures up to 200 PSI

• Available in 1750 RPM and 3450 RPM configurations

• Designed for continuous-duty operation

The broad hydraulic range allows the GNC Series to support everything from building circulation systems to large industrial fluid transfer applications.

Available Connection Configurations

Depending on the model, the GNC Series is available with either NPT threaded or flanged connections to accommodate varying system requirements.

NPT Threaded Connections

Threaded models are commonly specified for commercial facilities, mechanical rooms, booster applications, and equipment skid packages.

Benefits of NPT Connections

• Economical installation

• Compact system footprint

• Simplified piping modifications

• Easy pump replacement

• Ideal for OEM and packaged systems

• Reduced installation costs

Flanged Connections

Larger GNC models are available with flanged suction and discharge connections for high-flow systems and industrial installations.

Benefits of Flanged Connections

• Superior piping support

• Improved alignment in large systems

• Easier maintenance and pump removal

• Ideal for high-capacity applications

• Enhanced reliability in continuous-duty service

• Preferred for industrial, municipal, and institutional projects

Designed for Easy Maintenance

The GNC Series incorporates Burks' proven back pull-out design, allowing the rotating assembly to be removed without disturbing system piping. This significantly reduces maintenance time and minimizes operational downtime.

Wide-spaced bearings provide excellent shaft support, while replaceable wear components help maintain efficiency and simplify long-term maintenance planning.

Optional High-Temperature Service

Many GNC Series models are available with Burks' MJ Jacketed Seal option for hot water, heat transfer fluid, and thermal oil applications. This specialized design helps extend seal life while supporting fluid temperatures up to 500°F in appropriate configurations.

Typical Applications

• HVAC heating and cooling systems

• Chilled water circulation

• Cooling tower systems

• Industrial process water

• Water transfer and distribution

• Pressure boosting systems

• Manufacturing facilities

• Municipal water systems

• Irrigation and utility services

• Institutional and campus infrastructure

• General industrial fluid handling

Why Choose the Burks GNC Series?

The Burks GNC Series combines frame-mounted durability, simplified maintenance, and proven hydraulic efficiency to deliver dependable performance in demanding pumping systems. With flow capacities up to 1,100 GPM, horsepower ratings up to 75 HP, and a wide range of threaded and flanged connection options, the GNC Series provides a flexible, long-lasting solution for commercial and industrial fluid-handling applications. Whether serving an HVAC system, municipal water network, or industrial process operation, the GNC Series is built to provide reliable performance year after year.