Description
Bell & Gossett NBF-45 Lead Free Bronze Wet Rotor Circulator — Model 103405LF
The Bell & Gossett 103405LF is a high-performance, lead-free bronze wet rotor circulator engineered for reliable hydronic heating and cooling applications. Designed for compatibility with 1″, 1-1/4″, or 1-1/2″ flanges, this versatile circulator delivers efficient fluid movement across a wide range of residential and light commercial systems.
Key Features
- Lead-free bronze construction — compliant with lead-free plumbing requirements for potable water and hydronic systems
- Wet rotor design — motor rotor is immersed in system fluid for self-lubrication, eliminating the need for external bearings or seals
- Three-speed operation — allows field-selectable flow rates to match system demand and optimize energy efficiency
- Compatible with 1″, 1-1/4″, and 1-1/2″ flanges — flexible installation across multiple pipe sizes
- Single-phase motor — straightforward electrical integration in standard residential and light commercial settings
- Quiet, maintenance-free operation — wet rotor technology minimizes mechanical wear and noise
Electrical Specifications
- Voltage: 115V AC
- Phase: Single Phase
- Motor Speed: 3,300 RPM
- Full Load Amps: 2.30 A
- Power Consumption: 270 Watts
Compatibility & Installation
- Flange Sizes: 1″, 1-1/4″, or 1-1/2″
- Suitable for hydronic heating, radiant floor systems, and closed-loop cooling circuits
- Designed for use with Bell & Gossett NBF-series flange sets and accessories
Why Choose the Bell & Gossett NBF-45?
Bell & Gossett has been a trusted name in hydronic systems for over a century. The NBF-45 (103405LF) combines durable lead-free bronze construction with the efficiency of wet rotor technology and the flexibility of three-speed control — making it an ideal choice for contractors and building owners seeking a reliable, low-maintenance circulator that meets modern lead-free standards.
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