Armstrong 116443MF-136A H53-3 Cast Iron Pump 1/2HP 3PH

Description

Raise boiler-loop head with Armstrong 116443MF-136A H53-3, a 1/2 HP three-phase pump rated for approximately 50 feet of maximum head. Its cast-iron body, open drip proof motor, and horizontal in-line mounting suit industrial HVAC loops and balanced commercial heating systems. Verify the electrical supply and pipe support before installation. A three-phase motor also requires correct phase rotation, not only the correct voltage.

The motor accepts 208–230/460 V three-phase power and uses a Sealed Bearing Assembly within the in-line horizontal arrangement. CSA and UL listing are included in the supplied product data, along with the approximate head rating. Flow, amp draw, connection size, physical dimensions, and weight were not provided, so select the pump from the actual system curve and confirm the available mechanical-room clearance.

Key Features & Benefits

• 1/2 HP Three-Phase Motor: Supports compatible commercial HVAC systems with balanced electrical service.
• 208–230/460 V Configuration: Gives contractors multiple voltage options for replacement planning.
• Approximately 50 Feet Maximum Head: Provides a useful selection reference for higher-resistance hydronic loops.
• Cast-Iron Body: Suits fixed industrial HVAC and commercial heating installations.
• Open Drip Proof Motor: Identifies the enclosure style for proper mechanical-room placement.
• Sealed Bearing Assembly: Supports the rotating assembly without adding routine oiling to the supplied maintenance requirements.
• CSA/UL Listed: Helps contractors verify the stated certification requirement for compatible installations.

Why Choose Armstrong 116443MF-136A H53-3

The H53-3 gives commercial installers a defined three-phase pump package with approximately 50 feet of head, horizontal in-line mounting, and a sealed bearing assembly for industrial HVAC work.

• Build: Cast iron, ODP motor construction, and sealed bearing assembly provide identified mechanical and electrical details.
• Value: The listed head rating helps contractors compare this pump with higher-resistance boiler and HVAC loop requirements.
• Audience: Intended for industrial HVAC contractors, boiler technicians, facility engineers, and three-phase maintenance teams.

Applications & Use Cases

Apply Armstrong 116443MF-136A H53-3 to industrial HVAC loops, commercial heating circuits, and boiler branches requiring approximately 50 feet of head. The supplied data does not include physical dimensions, weight, port size, or port-to-port reach, so check horizontal pipe alignment, motor clearance, electrical access, lifting space, and support points before installation.

Warranty & Support

• Warranty Terms Require Confirmation: Verify duration, coverage, registration, exclusions, and authorized service requirements with Armstrong or the seller.
• Confirm SKU 116443MF-136A, H53-3 model details, voltage, phase, and certification before purchase.

Prime and purge the loop, verify phase rotation, inspect the sealed bearing assembly for abnormal noise, and confirm the ODP motor is protected from unsuitable moisture exposure. Monitor vibration, temperature, and operating head during commissioning. Purchase the Armstrong 116443MF-136A H53-3 three-phase in-line HVAC pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.