Armstrong 182202-644 E7.2B ARMflo Bronze Circulating Pump

Compact potable-water heating systems can evaluate the Armstrong 182202-644 E7.2B with 120 V single-phase power, lead-free bronze construction, dry-rotor permanent-split-capacitor technology, stainless steel shaft, and silicon-carbide mechanical sealing.

The documented configuration supports high-efficiency recirculation, with a 150 psi maximum working pressure and 230°F maximum fluid temperature. The supplied record does not establish an exact flow or head value for this SKU, so final selection requires the system curve and required domestic-water duty.

Key Features

- 120 V single-phase operation supports electrical compatibility checks for potable-water installations.
- Lead-free bronze construction provides the documented body material for open-loop service review.
- Dry-rotor permanent-split-capacitor technology identifies the motor configuration.
- The stainless steel shaft provides the listed rotating-component material for service comparison.
- Silicon-carbide mechanical sealing identifies the documented seal arrangement for fluid evaluation.
- A 150 psi maximum pressure establishes the stated operating boundary.
- A 230°F maximum temperature limits the documented fluid-temperature selection.

Hydraulic Performance and Application

The E7.2B is listed for compact potable-water heating and high-efficiency recirculation, with Armstrong documentation identifying a flow range up to 38 GPM and head range up to 26 feet for the family. Final selection must use the exact performance curve and system resistance.

Installation Requirements

Confirm 120 V, 60 Hz, single-phase power, appropriate flange kit, indoor placement, fluid temperature between 32°F and 230°F, pressure up to 150 psi, rotation, and service access before commissioning. Lead-free bronze construction supports open-loop review, but project certification requirements must also be satisfied.

Warranty and Maintenance

Armstrong provides a 30-Month Limited Warranty from date of manufacture for circulators, covering material and workmanship defects under normal use and service. Improper installation, maintenance, misuse, alteration, negligence, abnormal additives, and normal wear are excluded. Permanently lubricated bearings reduce routine oiling, while seal inspection remains relevant. Mulmotor provides product-information support before purchase.