Circulate commercial hydronic water with Bell & Gossett 172718LF 611S, a 3/4 HP Series 60 pump for larger boiler loops and commercial heating zones. Its single-phase motor accepts 115 or 208–230 V power, while the 2-inch by 2-inch by 5-1/4-inch pump size provides a clear piping reference. Confirm the system curve, flange alignment, and electrical service before installation.

The maintenance-free Series 60 assembly uses sealed ball bearings and a stainless-steel shaft sleeve within the close-coupled in-line body. Manufacturer reference data identifies a 4.75-inch impeller for this 611S configuration. Flow, head, pressure, amp draw, seal material, dimensions, and weight were not supplied, so verify the current submittal before startup.

Key Features & Benefits

- 3/4 HP Motor: Supports commercial boiler recirculation and larger hydronic zones.
- Single-Phase Operation: Accepts 115 or 208–230 V service for flexible replacement planning.
- 2-Inch Flanged Size: Helps contractors match the pump to larger commercial piping.
- 4.75-Inch Impeller: Provides the manufacturer-referenced rotating diameter for replacement comparison.
- Stainless-Steel Shaft Sleeve: Provides the listed sleeve material for the rotating assembly.
- Sealed Ball Bearings: Reduce routine lubrication work during normal operation.
- Series 60 Design: Provides a defined pump family for commercial hydronic replacement.
- 5-1/4-Inch Pump Length: Helps installers review the supplied pump-size reference during layout checks.
- Maintenance-Free Arrangement: Supports lower routine bearing-service requirements.

Why Choose Bell & Gossett 172718LF 611S

The 611S combines single-phase voltage flexibility, 2-inch flanged piping, and maintenance-free bearing construction for commercial hydronic heating.

- Build: Series 60 construction, stainless-steel shaft sleeve, sealed bearings, and flanged body define the pump.
- Value: Maintenance-free bearings can reduce routine lubrication work during normal service.
- Audience: Suited to boiler technicians, commercial HVAC contractors, facility engineers, and hydronic maintenance teams.

Applications & Use Cases

Use Bell & Gossett 172718LF 611S for commercial boiler recirculation, larger hydronic zones, and compatible 2-inch flanged piping. Manufacturer reference data identifies a 2 x 2 x 5-1/4 configuration, 4.75-inch impeller, approximately 21-11/16-inch height, and 71-pound approximate weight. Verify the installation drawing before ordering.

Warranty & Support

- 3-Year Limited Warranty: Series 60 maintenance-free pump coverage should be confirmed against current manufacturer terms.
- Match SKU 172718LF, model 611S, horsepower, voltage, pump size, impeller, and shaft sleeve before ordering.

Fill and purge the loop, inspect the shaft-seal area and flange gaskets, verify voltage, and monitor vibration, temperature, noise, and leakage during commissioning. Purchase the Bell & Gossett 172718LF 611S Series 60 hydronic pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.