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Bronze circulating pump with flange connection, three-speed motor, 115V single phase

Armstrong Pumps

Armstrong Pumps 110223-308 Hot Water Circulating Pump 1/6 hp 115V 1 Phase Flange

SKU CH-Q9FN-W4FKY

Hot water circulating pump with three-speed operation delivers up to 18 gpm at 1 foot of head and 24 ft maximum head for residential plumbing systems

  • Delivers up to 18 gpm at 1 ft head for strong circulation
  • Maintains 11 gpm at 10 ft head for typical plumbing runs
  • Provides 7 gpm at 15 ft head for higher resistance systems
  • Three-speed motor matches flow to system demand
  • 115 V single-phase power suits standard residential wiring

Armstrong Astro 2 Circulating Pump

The Armstrong Astro 2 circulating pump delivers hot water recirculation for residential and light-commercial plumbing. It operates at 1/6 hp on 115V single-phase power with a three-speed motor. The flange connection simplifies installation on compatible pipework. This unit suits installers and facility managers who need reliable potable-water circulation.

Verify Voltage Pipe Size and Head Requirements

Confirm the supply provides 115V AC single-phase power before wiring the pump. Check that the existing piping matches the 1 1/4 inch intake size and flange connection type. Review the performance curve: 18 gpm at 1 foot of head, 11 gpm at 10 feet, and 7 gpm at 15 feet, with a maximum head of 24 feet. Ensure these flow and head values meet the system design.

Flange Connection and Multi-Speed Flexibility

The integrated flange and union allow direct bolting to mating flanges without extra adapters. Face-to-face dimension is 6 3/8 inches, so measure the available space between existing flanges before ordering. Three selectable speeds let you balance flow against noise and energy use after installation. Construction is rated for potable-water systems.

Highlights

  • Delivers up to 18 gpm at 1 ft head for strong circulation
  • Maintains 11 gpm at 10 ft head for typical plumbing runs
  • Provides 7 gpm at 15 ft head for higher resistance systems
  • Three-speed motor matches flow to system demand
  • 115 V single-phase power suits standard residential wiring

Specifications

BrandARMSTRONG

Questions about this item

What comes with the Armstrong 110223-308 pump and what must I supply?

The pump includes a flange connection; you must provide the 1 1/4 inch intake piping, gaskets, fasteners and a 115 V single-phase power supply.

Which speed setting should I select on the three-speed Astro 2 pump?

Choose the speed that matches your system head: low for 1 foot of head at 18 gpm, medium for 10 feet at 11 gpm, high for 15 feet at 7 gpm.

What does the 24 ft maximum head mean when the pump is installed?

It is the shut-off pressure limit; at that head flow drops to zero, so design your circuit for 10–15 ft of head where the pump actually delivers 7–11 gpm.

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