Description
The Bell & Gossett 103259LF (Model NBF-10S/LW) is a single-speed, lead-free bronze wet rotor circulator engineered for dependable performance in residential and light commercial hydronic heating systems. Its compact, maintenance-friendly wet rotor design eliminates the need for external bearings or shaft seals, reducing long-term service requirements and keeping installation straightforward.
Key Features
- Lead-free bronze construction — compliant with lead-free plumbing requirements for potable water and hydronic applications
- Wet rotor design — water-lubricated bearings eliminate the need for external lubrication or shaft seals
- Single-speed operation for consistent, reliable flow in hydronic heating circuits
- 1/2″ sweat (solder) connections for easy copper pipe integration
- Compact, lightweight form factor simplifies installation in tight mechanical spaces
Electrical Specifications
- Voltage: 115V AC
- Phase: Single Phase
- Speed: 2,800 RPM
- Full Load Amps: 0.46 A
- Power Consumption: 55 Watts
Mechanical Specifications
- Connection Size: 1/2″ Sweat (Solder)
- Body Material: Lead-Free Bronze
- Circulator Type: Wet Rotor
- Speed Configuration: Single Speed
- Model: NBF-10S/LW
Applications
- Residential and light commercial hydronic heating systems
- Hot water baseboard heating circuits
- Radiant floor heating distribution
- Potable water recirculation systems requiring lead-free components
- Boiler loop and zone circulation
The NBF-10S/LW is backed by Bell & Gossett’s decades of hydronic engineering expertise, making it a trusted choice for HVAC professionals who demand reliability and code compliance in every installation.
