Armstrong 110119MF-102 H-52-3 Cast Iron Pump 1/3HP 3PH

Description

During commercial hydronic heating operation, the Armstrong 110119MF-102 H-52-3 uses a 1/3 HP three-phase motor with 208-230 / 460V voltage options and 1725 RPM speed. The cast-iron body is bronze fitted, and its 1.5-inch flanged connection establishes the listed pipe interface. A non-ferrous Noryl or plastic impeller is specified for this circulating-pump configuration.

Published maximum head is approximately 38 feet, which should be compared with the actual secondary-loop system curve rather than treated as an expected operating result. The sealed bearing assembly is listed as maintenance-free, so periodic bearing lubrication is not part of its stated design. Verify required flow, electrical connection, piping size, fluid conditions, pressure, temperature, and mounting requirements before specification.

Key Specifications of the Armstrong 110119MF-102 H-52-3 Circulator

• A 1/3 HP three-phase motor provides the listed drive arrangement for compatible commercial hydronic secondary-loop circulation.
• The 208-230 / 460V configuration requires confirmation of the selected voltage connection against available site power.
• Motor speed is listed at 1725 RPM, defining the supplied drive-speed reference for equipment and duty review.
• Cast-iron bronze-fitted construction identifies the stated body and fitting-material arrangement for project comparison.
• A 1.5-inch flanged connection provides the listed pipe interface for matching compatible secondary-loop piping.
• Non-ferrous Noryl or plastic impeller material identifies the stated impeller construction for this pump configuration.
• Maximum head is approximately 38 feet, requiring comparison with actual system resistance and required circulation flow.

Hydraulic Performance and Application

The Armstrong Series 1050 H-52-3 is listed for commercial hydronic heating and secondary-loop circulation. Its approximately 38-foot maximum head is a published limit, not the expected operating head at every flow condition. Use the applicable performance curve and project system resistance to establish duty. Required flow, fluid properties, temperature, pressure, pipe losses, and selected electrical connection must align before final selection.

Installation and System Requirements

Verify site power supports the selected 208-230 or 460V three-phase connection, then compare required duty with the relevant pump curve. Confirm that the 1.5-inch flanged interface matches secondary-loop piping. Support nearby pipework independently to avoid loading the cast-iron assembly. Review mounting space, fluid conditions, pressure requirements, motor rotation, and official Armstrong instructions before commissioning the completed hydronic system.

Service and Maintenance Considerations

The sealed bearing assembly is listed as maintenance-free, so periodic bearing lubrication is not required under the stated design. Other checks remain necessary because bearing design does not remove pump, motor, piping, or electrical inspection needs. Review the non-ferrous impeller, flanged connections, electrical isolation, and motor condition during planned service. Use official Armstrong instructions for disassembly, troubleshooting, or component replacement.

Why Choose the Armstrong 110119MF-102 H-52-3

This configuration combines a 1/3 HP three-phase motor, selectable 208-230 / 460V power, and a 1725 RPM speed reference. Its 1.5-inch flanged connection, cast-iron bronze-fitted body, and non-ferrous impeller provide distinct comparison points. Buyers can assess the approximately 38-foot maximum head and sealed bearing design when matching the unit to commercial hydronic secondary-loop duty.

Warranty and Support

Armstrong circulators carry a 30-Month Limited Warranty from the manufacturer date of manufacture under Armstrong USA warranty terms. Coverage applies to defects in materials and workmanship when the product is installed and used according to Armstrong instructions. Conditions and exclusions apply. Mulmotor provides pre-purchase product guidance and order-related customer support before your purchase is placed.

Before Ordering the Armstrong 110119MF-102 H-52-3 Circulator

Before ordering, verify that your commercial hydronic heating or secondary-loop system requires a 1.5-inch flanged circulator with a 1/3 HP three-phase motor. You should confirm the intended 208-230 or 460V connection, required flow, and system head using the proper curve. Review the approximately 38-foot maximum head, fluid conditions, pipe support, mounting space, and rotation requirements before purchase.