Description
Bell & Gossett 103400 – NRF-36 Circulator Pump, 1/6 HP, 3-Speed, 115V, Cast Iron, Flanged
Model: 103400 – NRF-36
Horsepower: 1/6 HP
Voltage: 115V
Max Flow: 36 GPM
Max Head: 34 ft
Connection Size: ¾", 1", 1¼", 1½" Flanged
Material: Cast Iron
Pump Type: 3-Speed Wet Rotor Circulator
Warranty: 3 Years
Overview:
The Bell & Gossett NRF-36 (103400) is a rugged, high-efficiency, wet rotor circulator designed for residential and light commercial hydronic heating systems. With a 3-speed motor, cast iron construction, and flanged connections, this pump delivers powerful and flexible performance up to 36 GPM and 34 feet of head.
Ideal for baseboard, radiant, or fan coil heating systems, the NRF-36 provides reliable and quiet operation with minimal maintenance.
Key Features:
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3-Speed Operation – Allows flow adjustment to meet system demand and optimize performance.
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Cast Iron Construction – Durable body for closed-loop heating applications.
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Compact Wet Rotor Design – Quiet, maintenance-free operation with impedance-protected motor.
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Flanged x Flanged Connections – Fits a variety of common pipe sizes (¾" to 1½").
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3-Year Manufacturer Warranty – Industry-leading support and reliability.
Technical Specifications:
| Attribute | Details |
|---|---|
| Model Number | 103400 |
| Series | NRF-36 |
| Horsepower | 1/6 HP |
| Voltage | 115V |
| Amperage | 2.3 A |
| Hertz | 60 Hz |
| RPM | 3300 |
| Phase | Single |
| Max Flow | 36 GPM |
| Flow Range | 0 – 36 GPM |
| Max Head | 34 ft |
| Head Range | 0 – 34 ft |
| Max Pressure | 150 PSI |
| Max Temperature | 240°F (115°C) |
| Motor Type | Impedance-Protected, 3-Speed |
| Body Material | Cast Iron |
| Connection Type | Flanged x Flanged |
| Connection Sizes | ¾", 1", 1¼", 1½" |
| Application | Hydronic Heating |
| Warranty | 3 Years |
Applications:
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Hydronic baseboard heating
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Radiant floor heating
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Fan coil units
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Zoned heating systems
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Light commercial hot water recirculation
