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BELL & GOSSETT Circulating Pump Coupler: Mfr Part # 118705 - Motor Couplers for Circulator Pumps
BELLMotor Couplers for Circulator Pumps

BELL & GOSSETT Circulating Pump Coupler: Mfr Part # 118705

The BELL & GOSSETT Circulating Pump Coupler, part number 118705, is a cast-iron motor coupler designed for Bell & Gossett circulator pumps. It is compatible with the 100 NFI series and manufacturer model number PR…

SKU 3G-OTH-83416

Brand
BELL
Item
& GOSSETT Circulating Pump Coupler: Mfr Part # 118705
Category
Motor Couplers for Circulator Pumps
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Technical Specifications

BELL
Manufacturer Part Number
118705
Coupling Material
Cast Iron
Compatible with Brand
Bell & Gossett
Compatible with Series
100 NFI
Compatible with Grainger Part Number
4RC94
Compatible with Manufacturer Model Number
PR AB
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BELL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BELL & GOSSETT Circulating Pump Coupler, part number 118705, is a cast-iron motor coupler designed for Bell & Gossett circulator pumps. It is compatible with the 100 NFI series and manufacturer model number PR AB, as well as Grainger part number 4RC94.

Frequently Asked Questions

What is the BELL & GOSSETT 118705 circulating pump coupler used for?

The BELL & GOSSETT 118705 cast-iron coupler connects the motor shaft to the pump shaft in Bell & Gossett circulator pumps, transmitting torque to drive the impeller. It is commonly used in HVAC hydronic heating and cooling systems, as well as industrial fluid circulation applications.

What are the specifications of the BELL & GOSSETT 118705 coupler?

The BELL & GOSSETT 118705 coupler is made of cast iron. It is compatible with Bell & Gossett circulator pumps in the 100 NFI series and manufacturer model number PR AB. It also cross-references to Grainger part number 4RC94. The manufacturer part number is 118705.

Where to buy the BELL & GOSSETT 118705 coupler worldwide?

3G Electric supplies the BELL & GOSSETT 118705 cast-iron coupler to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Bell & Gossett part.

How to install the BELL & GOSSETT 118705 coupler on a circulator pump?

To install the BELL & GOSSETT 118705 coupler, first disconnect power and drain the system. Align the motor and pump shafts, then slide the cast-iron coupler onto both shafts. Secure with set screws per the manufacturer's torque specifications. Always verify shaft alignment to prevent premature wear.

Used in

Common applications for BELL
Hydronic heating systems — BELL & GOSSETT Series 60 circulator pump impellers (p82880) for closed-loop hot water circulation.
Commercial HVAC maintenance — BELL & GOSSETT flange hardware kits (P64910) for securing pump flanges in chiller and boiler rooms.
Industrial fluid handling — BELL & GOSSETT isolation flanges (101223LF) for isolating pumps in process piping systems.
Outdoor electrical installations — BELL weatherproof covers (5028-0) for protecting receptacles in NEMA 3R environments.
Floor box access in commercial buildings — BELL brass floor box covers (6249) for flush-mounted electrical outlets in concrete floors.
Pump repair and retrofit — BELL & GOSSETT bearing assemblies (189105LF) for in-line circulating pumps in Series PR applications.

BELL Products

3G Electric supplies BELL motor couplers for circulator pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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BELL & GOSSETT Impeller: 118675, Steel, 4.25 in Dia., 102226. Key specifications — Compatible with Grainger Part Number: 4RD02; Compatible with Manufacturer Model Number: 102226; Product Type: Impeller; Manufacturer Part Number: 118675; Impeller Material: Steel.

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