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Armstrong bronze flanged circulating pump with terminal box

Armstrong Pumps

Armstrong Pumps 182202-649 Hot Water Circulating Pump 1/6 hp 120V 1 Phase Flange

SKU CH-6DQ1-EQXPT

Hydronic circulating pump delivers up to 42 gpm at 1 ft head with 1/6 hp, 120 V single-phase motor and flange connection

  • Delivers up to 42 gpm at 1 ft head for strong low-restriction flow
  • Maintains 32 gpm at 10 ft head for typical residential hydronic loops
  • Provides 26 gpm at 15 ft head for higher-pressure circuit demands
  • Single-phase 120 V AC motor simplifies wiring in standard household panels
  • Flanged connection with 8-1/2 in face-to-face dimension eases retrofit installation

Armstrong Hydronic Circulating Pump

The Armstrong 182202-649 is a hydronic circulating pump built for closed-loop hot water systems. It operates on 120V AC single-phase power with a 1/6 hp motor and a single-speed design. Flange connections with an 8 1/2 inch face-to-face dimension simplify installation in compatible piping layouts.

Flange Connection and Head Limits

This pump uses a flange connection type with a compatible intake pipe size of 1 1/2 inches. It delivers a maximum head of 28 feet, defining the practical limit for vertical lift or system resistance. Flow rates decrease as head increases, so system designers must match piping friction losses to the pump curve for proper circulation.

Flow Capacity and System Fit

At 1 foot of head the pump moves up to 42 gpm, falling to 32 gpm at 10 feet and 26 gpm at 15 feet of head. These figures suit residential or light commercial hydronic loops with moderate pressure drop. It is not rated for potable water systems, so installers must restrict it to non-potable heating applications.

Highlights

  • Delivers up to 42 gpm at 1 ft head for strong low-restriction flow
  • Maintains 32 gpm at 10 ft head for typical residential hydronic loops
  • Provides 26 gpm at 15 ft head for higher-pressure circuit demands
  • Single-phase 120 V AC motor simplifies wiring in standard household panels
  • Flanged connection with 8-1/2 in face-to-face dimension eases retrofit installation

Specifications

BrandARMSTRONG

Questions about this item

What is the difference between the 28 ft head rating and the 42 gpm flow at 1 ft of head?

The 28 ft figure is the maximum head the pump can develop at zero flow, while 42 gpm is the maximum flow rate when head is only 1 ft; actual flow drops as head rises.

Will the 1/6 hp motor on 120 V single phase deliver the listed 32 gpm at 10 ft of head in a typical hydronic loop?

Yes, the published curve shows 32 gpm at 10 ft of head for this 1/6 hp, 120 V single-phase unit, so it will meet that duty point if piping losses match.

Does the flange connection conform to a standard bolt pattern that matches common 1 1/2 in flanged pipe?

The pump uses a flanged connection with an 8 1/2 in face-to-face dimension for 1 1/2 in pipe; verify bolt-circle diameter against your existing flange before installing.

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