Armstrong 174036MF-113 S-45 Cast Iron Pump

Description

Medium-flow boiler circulation uses Armstrong 174036MF-113 S-45 for hydronic heating systems requiring reliable 115 V operation. Its 1/4 HP single-phase motor supports approximately 65 GPM through a 4-1/8-inch impeller, while the maintenance-free SBA and flexible spring coupler simplify service planning. Confirm the 175 PSI pressure limit, system curve, motor rotation, and piping alignment before startup.

The Armstrong Series S S-45 uses a cast iron body, maintenance-free sealed bearing assembly, and flexible spring coupler. Its approximate flow capacity supports medium-duty hydronic heating, while verified data does not include maximum head, amp draw, RPM, seal material, connection size, operating temperature, dimensions, weight, thermal protection, or self-priming capability. Match the pump to the boiler-loop duty point before installation.

Key Features of Armstrong 174036MF-113 S-45

• 1/4 HP motor supports medium-flow hydronic heating and boiler circulation.
• 115 V single-phase operation suits compatible residential and commercial heating systems.
• Approximately 65 GPM flow supports medium-duty hydronic distribution requirements.
• 4-1/8-inch impeller supports the specified S-45 hydraulic configuration.
• Cast iron body provides a rigid housing for boiler circulation.
• Maintenance-free SBA reduces routine bearing lubrication and service requirements.
• Flexible spring coupler transfers motor torque within the pump assembly.
• 175 PSI maximum pressure supports compatible hydronic system design.
• Maximum head, amperage, RPM, seal, temperature, dimensions, weight, protection, and warranty require confirmation.

Why Choose Armstrong 174036MF-113 S-45

This Armstrong cast iron heating pump combines maintenance-free bearing construction with medium-flow hydronic performance.

• Build: Cast iron, sealed bearing assembly, and flexible coupling support compatible boiler circulation installations.
• Value: Maintenance-free bearings can reduce lubrication tasks, service interruptions, and routine maintenance labor.
• Audience: Boiler contractors, residential HVAC technicians, hydronic installers, facility managers, and heating-system service teams can specify this model.

Applications & Use Cases

Use the Armstrong 174036MF-113 S-45 for medium-flow hydronic heating, boiler circulation, residential heating, and compatible commercial loops. Physical dimensions, unit weight, and connection reach were not supplied, so verify pipe spacing, valve clearance, motor access, coupling room, lifting requirements, and service clearance before installation.

Warranty & Support

• Warranty: Armstrong USA general terms provide 12 months from installation, not exceeding 18 months from shipment, for applicable non-E.2 products.
• Verify voltage, purge trapped air, inspect the seal area, confirm coupling alignment, and check system pressure during commissioning.

Clean strainers, monitor the cast iron body for leakage, and inspect the SBA and flexible coupler during scheduled maintenance. Purchase the Armstrong 174036MF-113 S-45 hydronic heating pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.