Armstrong H-64-1 Series Cast Iron Centrifugal Pump 3/4HP 1 Phase

Description

Move heavy commercial heating water with Armstrong 116475-132 H-64-1, a 3/4 HP single-phase Series 1060 pump for high-flow boiler loops. Its 115/230 V motor, cast-iron body, 2-inch flanged connection, and approximately 5.25-inch impeller suit larger hydronic systems where piping and electrical matching must be checked together. The supplied listing describes maintenance-free lubrication, but the standard H-64 reference should be reviewed for the exact bearing arrangement before purchase.

The 1725 RPM pump uses a mechanical ceramic, carbon, and BUNA seal within the in-line centrifugal assembly. Manufacturer reference data identifies the standard H-64 design with sleeve-oil-lubricated bearings, while the supplied listing describes permanently lubricated construction. Flow, head, amp draw, dimensions, weight, and final bearing details were not confirmed, so verify the current submittal before installation.

Key Features & Benefits

• 3/4 HP Motor: Supports heavy commercial hydronic heating and high-flow boiler circulation.
• 115/230 V Single-Phase: Provides flexible electrical service for compatible commercial installations.
• 1725 RPM Speed: Gives contractors a clear motor reference for replacement matching.
• 2-Inch Flanged Connection: Helps verify compatibility with larger commercial boiler piping.
• Cast-Iron Body: Provides the specified casing material for fixed hydronic service.
• Approximately 5.25-Inch Impeller: Identifies the supplied rotating component for comparison.
• Ceramic/Carbon/BUNA Seal: Helps contain circulating fluid around the shaft.
• Bearing Verification Required: Confirms whether oiling or maintenance-free service applies to the exact pump.

Why Choose Armstrong 116475-132 H-64-1

The H-64-1 offers a larger Series 1060 configuration for commercial boiler loops, but the bearing and lubrication description should be confirmed before service planning.

• Build: Cast iron, mechanical seal, 2-inch flange, and Series 1060 construction define the supplied pump.
• Value: Confirming bearing requirements can prevent missed lubrication or unnecessary maintenance work.
• Audience: Suited to boiler technicians, commercial HVAC contractors, facility engineers, and hydronic service teams.

Applications & Use Cases

Use Armstrong 116475-132 H-64-1 for heavy commercial hydronic heating, high-flow boiler loops, and compatible 2-inch flanged piping. The supplied data does not provide overall dimensions, unit weight, or port-to-port reach, so verify flange alignment, pipe support, valve clearance, motor access, and the bearing service arrangement before installation.

Warranty & Support

• Warranty Terms Require Confirmation: Verify duration, coverage, registration, exclusions, and authorized service requirements with Armstrong or the seller.
• Match SKU 116475-132, H-64-1 model, horsepower, voltage, flange size, impeller, seal, and bearing details before ordering.

Fill and purge the loop, inspect the seal and flange areas, verify the selected voltage, and follow the confirmed bearing-maintenance instructions. Monitor flow, vibration, temperature, noise, and leakage during commissioning. Purchase the Armstrong 116475-132 H-64-1 cast-iron hydronic centrifugal pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.