Armstrong 182212-800 E12.2 Circulator Pump Cast Iron 240v

Operating at 45 GPM, the Armstrong 182212-800 E12.2 supports commercial radiant heating and secondary hydronic loops with a maximum head of 31 feet. Its 240 V single-phase motor, cast-iron body, and dry-rotor design suit compatible mechanical rooms where stable circulation and thermal overload protection are required. Fill and purge the loop before startup, align the two-bolt flanges, and support the piping without transferring strain into the pump.

The E12.2 uses a standard two-bolt flange connection and operates at a maximum water temperature of 230°F. Dry-rotor technology separates the motor rotor from the pumped fluid, while inherent thermal overload protection helps guard the motor during overheating conditions. The supplied data does not identify amp draw, impeller material, seal type, RPM, pressure-switch settings, or self-priming capability, so size the 240 V branch circuit and confirm the operating point against the hydronic system curve.

Key Features of Armstrong 182212-800 E12.2

- 45 GPM maximum flow for commercial hydronic circulation.
- 31-foot maximum head for secondary-loop system matching.
- 240 V single-phase motor suits compatible high-voltage branch circuits.
- Dry-rotor technology separates the motor rotor from the pumped fluid.
- Cast-iron body supports fixed radiant-heating and secondary-loop installation.
- Standard two-bolt flange connection simplifies compatible pump replacement.
- Thermal overload protection helps guard against motor overheating.
- 230°F maximum operating temperature supports high-temperature hydronic service; amp draw, seal, impeller, dimensions, and warranty terms were not supplied.

Why the Armstrong 182212-800 E12.2 Stands Out

This Armstrong commercial circulator combines a 240 V dry-rotor motor, cast-iron housing, thermal overload protection, and published hydraulic limits for secondary-loop design.

- Build: Cast iron and two-bolt flanges provide a stable connection for hydronic piping, while thermal overload protection adds a safeguard during high-temperature service.
- Value: A defined flow and head range helps installers avoid pump oversizing, excess electrical demand, and unnecessary service calls.
- Audience: Commercial HVAC contractors, boiler technicians, radiant-heating installers, and facility engineers can apply this model to compatible secondary loops.

Applications & Use Cases

Install the Armstrong 182212-800 E12.2 in commercial radiant-heating loops, hot-water distribution circuits, and secondary boiler headers within its published flow, head, voltage, and temperature limits. Physical dimensions, unit weight, and flange reach were not provided, so verify bolt spacing, valve clearance, motor access, wiring space, and service room before installation.

Warranty & Support

- Factory warranty terms were not included in the supplied product data. Confirm warranty duration, commissioning requirements, exclusions, and authorized support before ordering.
- Inspect flange joints, purge air, clean strainers, check for seal leakage, and test thermal protection during planned maintenance.

Confirm the 240 V supply, conductor sizing, flow direction, operating temperature, and flange alignment before placing the pump into service. Purchase the Armstrong 182212-800 E12.2 hydronic circulator pump from [store domain] for authentic equipment, applicable factory warranty protection, and pump support.