Description
The Bell & Gossett 103417 (Model NRF-25) is a high-quality, three-speed cast iron wet rotor circulator pump engineered for dependable performance in residential and light commercial hydronic heating systems. Its wet rotor design eliminates the need for external shaft seals and lubrication, reducing maintenance requirements and extending service life.
Key Electrical Specifications
- Voltage: 115VAC
- Phase: Single Phase
- Speed: 2,950 RPM
- Full Load Amps: 1.20 A
- Power Consumption: 125 Watts
- Speed Settings: Three Speed
Compatible Flange Sizes
- 3/4″ Flanges
- 1″ Flanges
- 1-1/4″ Flanges
- 1-1/2″ Flanges
Construction & Design Features
- Cast iron pump body for durability and corrosion resistance in closed-loop systems
- Wet rotor design — motor rotor runs submerged in system fluid for self-lubrication
- Three selectable speed settings allow flow rate optimization for varying system demands
- Compact, in-line installation for easy integration into existing piping
- No mechanical seals or external lubrication required
Application
The NRF-25 is ideally suited for hot water heating systems, radiant floor heating, and hydronic distribution loops. Its three-speed operation gives installers the flexibility to match pump output to actual system requirements, improving energy efficiency and comfort. The broad flange compatibility (3/4″ through 1-1/2″) makes it a versatile drop-in solution for a wide range of piping configurations.
Why Choose Bell & Gossett
Bell & Gossett has been a trusted name in hydronic heating and fluid handling for over a century. The NRF-25 circulator reflects their commitment to reliability, efficiency, and ease of installation — making it a go-to choice for HVAC professionals across the industry.
Reviews
There are no reviews yet.