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Armstrong Astro 225SSU circulating pump, stainless steel body, union connections, 115V, three-speed

Armstrong Pumps

Armstrong Pumps Astro 225SSU 110223-310 pump 1/9 hp 115V 3-speed

SKU CH-QCPE-YSJ92

Hot water circulator pump delivers up to 14 gpm at 1 ft head with three-speed 115 V operation

  • Circulates hot water efficiently with 1/9 hp motor
  • Three-speed operation matches demand for energy savings
  • Delivers up to 14 gpm at 1 ft head
  • Handles 13 ft maximum head for multi-story systems
  • Runs on standard 115V single-phase power

Armstrong Astro 225SSU circulator

The Armstrong Astro 225SSU is a three-speed hot water circulator designed for residential hydronic heating and potable water systems. It operates on 115V single-phase power and draws 0.69 A at its 1/9 hp rating. The pump suits installers and homeowners who need reliable circulation in closed-loop applications.

13 ft maximum head

The single specification that decides fit is the 13 ft maximum feet of head. This limit defines the highest pressure the pump can develop against a closed valve. Systems requiring more head will not achieve design flow with this unit.

Flow rates at 1, 5 and 10 ft head

At 1 ft of head the pump delivers 14 gpm, at 5 ft it delivers 11 gpm and at 10 ft it delivers 6 gpm. These three points show comfortable capacity for low-head zones and where head losses are modest. Beyond 10 ft of head the flow drops sharply toward the 13 ft shut-off limit.

Highlights

  • Circulates hot water efficiently with 1/9 hp motor
  • Three-speed operation matches demand for energy savings
  • Delivers up to 14 gpm at 1 ft head
  • Handles 13 ft maximum head for multi-story systems
  • Runs on standard 115V single-phase power

Specifications

BrandARMSTRONG

Questions about this item

What does 1/9 hp actually deliver in a hot-water loop?

The pump reaches 14 gpm at 1 foot of head, 11 gpm at 5 feet and 6 gpm at 10 feet, with a maximum head of 13 feet.

How does the 115 V single-phase supply limit installation?

It runs on standard 115 V AC household current, draws 0.69 A and is single-phase only.

What pipe size and face-to-face length are needed to fit the Astro 225SSU?

The intake accepts 1 1/4 in FNPT connections and the face-to-face dimension is 6 in.

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