Datasheet

115Vac, Single Phase, 2940 RPM, .80 Full Load Amps, 92 Watts, Single Speed, Cast Iron Wet Rotor Circulator used with 3/4″, 1″, 1 1/4″, or 1 1/2″ Flanges (Model NRF-22)

Bell & Gossett 103251 (NRF-22) Circulator Pump – 1.25 HP Red Fox Hydronic Pump

The Bell & Gossett 103251, also known as the NRF-22, is a high-performance Red Fox series circulator pump designed to deliver dependable fluid movement in hydronic heating and cooling systems. With a 1.25 horsepower motor and rugged construction, this pump provides efficient and consistent operation in commercial and light industrial HVAC applications. Whether used in boiler circulation, chilled water loops, or pressure-boosting systems, the NRF-22 circulator is engineered for longevity and reliable performance.

Trusted by contractors and facility engineers alike, the 103251 pump supports smooth fluid flow, reduced vibration, and quiet operation — helping ensure system efficiency and long-term durability. Its industrial-grade build makes it ideal for demanding environments where consistent water movement is essential.

Features

• Bell & Gossett 103251 (NRF-22) circulator pump
• 1.25 HP motor for strong flow and head performance
• Part of the Red Fox hydronic pump series — industrial-grade reliability
• Designed for hydronic heating and cooling circuit applications
• Suitable for boiler circulation, chilled water systems, and fluid transfer loops
• Durable construction for extended service life
• Quiet, reliable operation with smooth fluid handling

Benefits & Applications

• Delivers efficient, consistent fluid circulation in hydronic systems
• High horsepower rating supports larger HVAC system loads
• Designed to operate quietly even under continuous duty
• Ideal for boiler loops, chilled water circuits, and pressure-boosted applications
• Trusted by HVAC contractors, mechanical engineers, and maintenance professionals
• OEM-grade construction anticipates long service life with minimal maintenance

Technical Specifications

Applications

• Hydronic heating system circulation
• Boiler water circulation and return loops
• Chilled water system fluid movement
• Facility mechanical HVAC systems requiring dependable flow
• Pressure boosting and fluid transfer circuits

Verify system requirements such as flow, head, and horsepower before specifying or installing this pump.

Installation & Use Notes

• Pump installation should follow manufacturer and system design specifications
• Confirm electrical supply matches motor requirements before powering up
• Ensure proper orientation and secure mounting of pump in piping system
• Provide isolation valves and bypass piping as needed for maintenance
• Check for proper alignment, torque, and pipe support during installation
• Regularly inspect bearings, seals, and performance to ensure continuous reliability

Why Buy from APEX Controls

• Bell & Gossett OEM hydronic pump — guaranteed quality and compatibility
• Built for reliable operation in commercial HVAC and fluid systems
• Suitable for contractors, facility engineers, and service professionals
• Helps keep hydronic systems performing efficiently and reliably
• Trusted supplier for premium HVAC and mechanical components