Description
Bell & Gossett 106189 – Series 100 NFI Circulator Pump, 1/12 HP, 115V, Cast Iron
Overview
The Bell & Gossett Series 100 NFI (106189) is a trusted standard in hydronic heating systems. Designed for reliability and ease of service, this three-piece oil-lubricated circulator pump is ideal for residential and light commercial hot water applications. Its precision-engineered construction includes a non-ferrous impeller, oversized shaft, and integral thrust collar—ensuring quiet operation and long service life.
With a 1/12 HP motor, built-in overload protection, and flanged connections compatible with ¾", 1", 1¼", and 1½" systems, this circulator delivers up to 33 GPM at a maximum head of 8 feet. The durable cast iron body and versatile flange compatibility make it an installer favorite for both retrofit and new installs.
Key Features
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Powerful & Efficient: 1/12 HP, 115V motor with built-in overload protection
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Quiet & Reliable: Oil-lubricated motor with quiet operation and low maintenance
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Field-Serviceable: Three-piece design for easy access to shaft, bearing, and seal
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Versatile Fit: Works with multiple flange sizes (3/4" to 1½")
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Long Lifespan: Hardened shaft and thrust collar reduce end-thrust and extend seal life
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Certified: UL and CSA listed for quality and safety assurance
Specifications
| Attribute | Details |
|---|---|
| Model | 106189 / Series 100 NFI |
| Horsepower | 1/12 HP |
| Voltage | 115V |
| Amperage | 1.75 A |
| Hertz | 60 Hz |
| Phase | 1 |
| Max Flow | 33 GPM |
| Flow Range | 0–33 GPM |
| Max Head | 8 ft |
| Head Range | 0–8 ft |
| Max Pressure | 125 PSI |
| Max Temperature | 225°F |
| RPM | 1725 RPM |
| Pump Type | Three-piece, oil-lubricated |
| Impeller Material | Non-Ferrous |
| Body Material | Cast Iron |
| Connection Type | Flanged x Flanged |
| Compatible Flange Sizes | 3/4", 1", 1¼", 1½" |
| Application | Hydronic heating, closed-loop |
| Certifications | UL Listed, CSA Certified |
| Included | Gaskets, mounting bolts, motor oil |
| Warranty | 18 Months from date of manufacture |
