Description
Bell & Gossett NRF-36 Three Speed Cast Iron Wet Rotor Circulator — 103402
The Bell & Gossett 103402 (Model NRF-36) is a high-performance, three-speed cast iron wet rotor circulator pump engineered for reliable hydronic heating and cooling applications. Its wet rotor design eliminates the need for external lubrication, reducing maintenance demands and extending service life. The versatile flange compatibility makes it an ideal drop-in solution for a wide range of residential and light commercial hydronic systems.
Electrical Specifications
- Voltage: 208/230 VAC
- Phase: Single Phase
- Motor Speed: 3,300 RPM
- Full Load Amps: 1.20 A
- Power Consumption: 270 Watts
- Speed Settings: Three Speed
Construction & Compatibility
- Body Material: Cast Iron for durability and long service life
- Motor Type: Wet Rotor — no external lubrication required
- Compatible Flange Sizes: 3/4″, 1″, 1-1/4″, and 1-1/2″
- Model Number: NRF-36
- Part Number: 103402
Key Benefits
- Three-speed operation allows precise flow rate adjustment to match system demand
- Wet rotor design means the motor is cooled and lubricated by the system fluid, eliminating bearing maintenance
- Cast iron construction provides exceptional durability in demanding hydronic environments
- Wide flange compatibility simplifies installation and retrofit applications
- Trusted Bell & Gossett engineering backed by decades of hydronic expertise
Typical Applications
- Hydronic heating and cooling distribution systems
- Boiler circulation loops
- Radiant floor heating systems
- Fan coil and air handler loops
- Residential and light commercial hydronic installations
The Bell & Gossett NRF-36 (103402) delivers the performance and reliability that HVAC professionals expect from one of the industry’s most trusted circulator pump brands. Its combination of three-speed flexibility, robust cast iron construction, and broad flange compatibility makes it a go-to choice for new installations and system upgrades alike.
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