Bell & Gossett 103417 - NRF-25 3-Speed Circulator Pump, 1/15 HP
Bell & Gossett 103417 - NRF-25 3-Speed Circulator Pump, 1/15 HP
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The NRF-25 delivers reliable hot‑water circulation for residential and light commercial heating systems, maintaining consistent temperature and pressure. This pump, model **NRF-25** with part number **103417**, operates at 1/15 HP across three speed settings for precise flow control.
Featuring a hermetically sealed motor and a robust cast‑iron body, the pump moves water through a centrifugal impeller that converts motor torque into fluid velocity. The three‑speed selector allows technicians to match system demand, optimizing energy use while preventing cavitation.
Key System Performance Baselines:
- Flow Capacity: Designed to handle typical residential loop requirements with efficient water movement.
- Energy Efficiency: Three‑speed operation reduces power consumption by matching flow to load.
- Durability: Cast‑iron construction and sealed bearings provide long‑term reliability.
⚠️ Application Profile: Ideal for hot‑water recirculation, boiler feed, and hydronic heating loops in single‑family homes, apartments, and small commercial buildings.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 103417 |
| Model Designation | NRF-25 |
| Horsepower | 1/15 HP |
| Speed Settings | 3 Speed |
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