Circulate commercial hydronic water with Bell & Gossett 172668LF 609S, a 3/4 HP Series 60 pump for HVAC heating and cooling loops. Its single-phase motor accepts 115 or 208–230 V power, while the 1-1/2-inch by 1-1/2-inch by 5-1/4-inch configuration suits compatible commercial piping. The 5-1/4-inch bronze impeller provides a clear replacement reference. Confirm the system curve before installation.

The three-piece flex-coupled design transfers motor rotation through the maintenance-free Series 60 assembly. Flow, head, pressure, amp draw, seal material, dimensions, and weight were not provided. Verify the pump nameplate, flange spacing, valve access, motor clearance, and flooded-suction conditions before startup.

Key Features & Benefits

- 3/4 HP Motor: Supports commercial hydronic heating and cooling circulation.
- Single-Phase Operation: Accepts 115 or 208–230 V service for flexible replacement planning.
- 1-1/2-Inch Pump Size: Helps contractors compare the unit with compatible commercial piping.
- 5-1/4-Inch Bronze Impeller: Provides a defined rotating-component reference for equipment matching.
- Three-Piece Flex-Coupled Design: Gives technicians a familiar assembly for inspection and service.
- Maintenance-Free Series 60: Reduces routine lubrication work during normal operation.
- Cast-Iron Bronze-Fitted Body: Provides the specified construction for compatible hydronic systems.
- Commercial Closed-Loop Use: Directs selection toward HVAC heating and cooling applications.

Why Choose Bell & Gossett 172668LF 609S

The 609S combines a 3/4 HP single-phase motor with a flex-coupled Series 60 arrangement for commercial hydronic heating and cooling.

- Build: Cast iron, bronze impeller, flex-coupled construction, and 1-1/2-inch pump size define the supplied assembly.
- Value: Maintenance-free construction can reduce routine bearing service during normal operation.
- Audience: Suited to commercial HVAC contractors, boiler technicians, facility engineers, and hydronic maintenance teams.

Applications & Use Cases

Use Bell & Gossett 172668LF 609S for commercial hydronic heating, cooling loops, boiler branches, and compatible 1-1/2-inch piping. The supplied data does not provide overall dimensions, unit weight, or port-to-port reach, so verify flange spacing, valve clearance, pipe support, motor access, and service space before installation.

Warranty & Support

- 3-Year Limited Warranty: Series 60 maintenance-free pump coverage should be confirmed against current manufacturer terms.
- Match SKU 172668LF, model 609S, horsepower, voltage, pump size, impeller, and construction before ordering.

Fill and purge the loop, inspect the flange and seal areas, verify the selected voltage, and monitor vibration, noise, temperature, and leakage during commissioning. Purchase the Bell & Gossett 172668LF 609S Series 60 hydronic circulating pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.