Description
The Bell & Gossett NBF-22U (SKU 103255LF) is a high-quality, lead-free bronze wet rotor circulator engineered for reliable hydronic heating and cooling applications. Designed with union connections for straightforward installation and serviceability, this single-speed circulator delivers consistent, efficient fluid circulation in residential and light commercial hydronic systems.
Built with a lead-free bronze construction, the NBF-22U meets modern plumbing and potable water safety standards, making it a compliant and responsible choice for today’s installations. The wet rotor design eliminates the need for external bearings and shaft seals — the circulated fluid itself lubricates the rotor, resulting in quieter operation and reduced maintenance requirements over the life of the pump.
Electrical Specifications
- Voltage: 115V AC
- Phase: Single Phase
- Speed: Single Speed
- Motor Speed: 2,940 RPM
- Full Load Amps: 0.80 A
- Power Consumption: 92 Watts
Key Features
- Lead-free bronze construction for safe, code-compliant installations
- Wet rotor design for quiet, low-maintenance operation
- Union connections for easy installation and removal
- Single-speed operation for dependable, straightforward performance
- Compact design suitable for residential and light commercial hydronic systems
- No external shaft seals or bearings required
Applications
- Hydronic heating and cooling systems
- Radiant floor heating loops
- Boiler circulation
- Domestic hot water recirculation
- Fan coil and air handler circulation
Bell & Gossett is a trusted industry leader in hydronic system components, and the NBF-22U continues that legacy with durable materials, proven wet rotor technology, and a design that simplifies installation while maximizing system reliability.







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