Armstrong 182212-841 E12.2 Circulator Pump Cast Iron

Boiler loops losing heat rely on Armstrong 182212-841 E12.2 to circulate water through closed-loop hydronic systems and residential boiler circuits. This 120 V single-phase ARMflo circulator uses dry-rotor technology, a cast iron body, and a stainless steel shaft for applications requiring up to 45 GPM and 31 feet of head. Fill and vent the loop, confirm flow direction, and prevent dry running before energizing the pump.

The Armstrong E12.2 provides a 120 V single-phase connection with compact PSC motor operation and low-noise performance. Its cast iron body carries the circulating fluid, while the stainless steel shaft supports the rotating assembly in residential boiler and closed-loop heating service. The published 150 PSI pressure rating provides a system-design reference, but verified data does not include amp draw, RPM, seal type, connection size, dimensions, weight, thermal protection, or self-priming capability.

Key Features of Armstrong 182212-841 E12.2

- 45 GPM maximum flow for closed-loop hydronic circulation.
- 31-foot maximum head for residential boiler system matching.
- 120 V single-phase motor suits standard compatible branch circuits.
- Dry-rotor technology separates the motor rotor from the circulating fluid.
- Compact PSC motor supports low-noise operation.
- Cast iron body provides a rigid hydronic pump housing.
- Stainless steel shaft supports the rotating pump assembly.
- 150 PSI pressure rating supports compatible closed-loop system design.
- Amperage, RPM, seal, connection size, dimensions, weight, thermal protection, and warranty terms require confirmation.

Why the Armstrong 182212-841 E12.2 Stands Out

This Armstrong residential boiler circulator combines dry-rotor technology, a low-noise PSC motor, cast iron construction, and a defined flow and head range.

- Build: Cast iron and a stainless steel shaft support closed-loop heating service, while dry-rotor construction separates the motor from the pumped water.
- Value: Low-noise operation and standard 120 V power can simplify residential boiler replacement and reduce installation changes.
- Audience: Boiler contractors, residential HVAC technicians, hydronic installers, property maintenance teams, and heating-system service professionals can apply this model to compatible loops.

Applications & Use Cases

Install the Armstrong 182212-841 E12.2 in residential boiler circulation, closed-loop hydronic heating, radiant-water systems, and small commercial heating zones. Physical dimensions, unit weight, and connection reach were not supplied, so confirm pipe spacing, isolation-valve placement, motor clearance, wiring access, and service room before installation.

Warranty & Support

- Factory warranty terms were not included in the supplied product data. Confirm coverage period, installation requirements, registration steps, and authorized support before ordering.
- Inspect the shaft and seal area, purge trapped air, verify system pressure, and confirm 120 V operation during commissioning.

Clean the system strainer, monitor for seal leakage, check operating noise, and verify flow direction during scheduled boiler service. Purchase the Armstrong 182212-841 E12.2 cast iron boiler circulator pump from [store domain] for authentic equipment, applicable factory warranty protection, and pump support.