Armstrong 116455MF-136A H-54-3 Cast Iron Pump 1HP 3PH

Support high-capacity chilled-water circulation with Armstrong 116455MF-136A H-54-3, a 1 HP three-phase pump for commercial hydronic systems. Its cast-iron body, 1725 RPM motor, 1-1/2-inch flanged connection, and flexible spring coupler suit fixed HVAC installations where electrical and piping compatibility must be checked together. The 175 psi maximum pressure rating gives contractors a defined operating limit. Confirm the system curve before installation.

The maintenance-free Sealed Bearing Assembly supports the rotating pump components without routine bearing lubrication. The 208–230/460 V motor operates on three-phase power, while the spring coupler transfers rotation through the in-line assembly. Flow, head, amp draw, dimensions, weight, shaft material, and seal details were not supplied, so verify the current submittal, flange alignment, phase rotation, and service clearance before startup.

Key Features & Benefits

- 1 HP Motor: Supports commercial chilled-water and high-capacity hydronic circulation.
- Three-Phase Power: Accepts 208–230/460 V service for compatible HVAC installations.
- 1725 RPM Speed: Provides a clear motor-speed reference for replacement matching.
- 1-1/2-Inch Flanged Connection: Helps contractors verify piping compatibility before installation.
- Cast-Iron Body: Provides the specified casing material for fixed commercial HVAC service.
- Flexible Spring Coupler: Transfers motor rotation through the pump assembly using the listed drive arrangement.
- Maintenance-Free SBA: Reduces routine bearing service during normal operation.
- 175 psi Maximum Pressure: Establishes the listed pressure limit for compatible systems.

Why Choose Armstrong 116455MF-136A H-54-3

The H-54-3 combines a 1 HP three-phase motor with a cast-iron body, flexible coupler, and maintenance-free SBA for commercial chilled-water circulation.

- Build: Cast iron, Sealed Bearing Assembly, flexible spring coupler, and flanged construction define the supplied pump.
- Value: Maintenance-free bearing construction can reduce routine service work during compatible HVAC operation.
- Audience: Suited to commercial HVAC contractors, boiler technicians, facility engineers, and chilled-water maintenance teams.

Applications & Use Cases

Use Armstrong 116455MF-136A H-54-3 for commercial chilled water, large hydronic loops, and compatible 1-1/2-inch flanged piping. The supplied data does not provide overall dimensions, unit weight, or port-to-port reach, so verify flange centerlines, pipe support, lifting access, motor clearance, and the required operating point before installation.

Warranty & Support

- Warranty Terms Require Confirmation: Verify duration, coverage, registration, exclusions, and authorized service requirements with Armstrong or the seller.
- Match SKU 116455MF-136A, model H-54-3, horsepower, phase, voltage, connection size, and pressure rating before ordering.

Fill and purge the loop, inspect the spring coupler and flange gaskets, verify phase rotation, and check for leakage before startup. Monitor vibration, temperature, noise, and operating pressure during commissioning. Purchase the Armstrong 116455MF-136A H-54-3 cast-iron commercial hydronic pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.