Description
Bell & Gossett 103351LF – NBF-33 Circulator Pump, 1/15 HP, 115V, Bronze, Lead-Free
Model: 103351LF – NBF-33
Horsepower: 1/15 HP
Voltage: 115V
Max Flow: 36 GPM
Max Head: 12 ft
Material: Bronze (Lead-Free)
Connection Type: Flanged x Flanged
Pump Type: Wet Rotor Circulator
Overview:
The Bell & Gossett 103351LF (NBF-33) is a high-efficiency, wet rotor, lead-free bronze circulator pump designed for quiet, reliable performance in hydronic heating and potable water systems. This single-speed model delivers a maximum flow of 36 GPM and a head of up to 12 feet, making it an excellent fit for residential and light commercial applications.
Compatible with flanges sized 3/4", 1", 1-1/4", or 1-1/2", this versatile pump meets modern lead-free compliance requirements.
Key Features:
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Lead-Free Bronze Construction: Compliant with safe drinking water standards and built for corrosion resistance.
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Energy Efficient Wet Rotor Design: Quiet, reliable operation with low power consumption (only 125W).
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Single Speed, Compact Motor: Ideal for zoned systems and closed-loop heating.
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Universal Flange Compatibility: Installs easily with standard 3/4" to 1-1/2" flange sizes.
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Thermally Protected Motor: For long-lasting, safe operation in demanding environments.
Specifications:
| Attribute | Details |
|---|---|
| Pump Type | Wet Rotor Circulator |
| Series/Model | NBF-33 |
| Model Number | 103351LF |
| Horsepower | 1/15 HP |
| Voltage | 115V |
| Amperage | 1.10 A |
| RPM | 2950 |
| Phase | 1 |
| Hertz | 60 Hz |
| Max Flow | 36 GPM |
| Flow Range | 0 – 36 GPM |
| Max Head | 12 ft |
| Head Range | 0 – 12 ft |
| Max Pressure | 150 PSI |
| Max Temperature | 225°F (107°C) |
| Material | Bronze (Lead-Free) |
| Connection Type | Flanged x Flanged |
| Compatible Flange Sizes | 3/4", 1", 1-1/4", 1-1/2" |
| Application | Hydronic Heating, Potable Systems |
Applications:
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Hydronic heating loops
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Domestic hot water recirculation
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Zoned heating systems
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Radiant floor heating
