Astro Express 2 Hot Water Recirculation System

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Astro Express 2 Hot Water Recirculation System
Astro 2 Hot Water Recirculation System Line drawing

  • Summary
  • Applications

    Domestic water distribution in standard two-pipe plumbing installations

  • Description

    The Armstrong Astro Express 2 hot water recirculation system is a combination of circulator and low-flow (LF) valve that provides instant hot water in a residential plumbing system. The LF valve shifts cooled hot water into the cold water supply line instead of into the drain. This means far less cooled water is wasted each time the hot water faucet is opened – saving an average of 12,000 gallons of water annually for a typical four-person household. Ideal for retrofit applications.

  • Materials

    Stainless steel (circulator) and lead-free bronze (valve)

  • Configuration

    Circulator plus low-flow valve

  • Performance range

    0 USgpm to 9.5 USgpm flow; 0 ft to 6 ft head

  • Temperature

    Max ambient temp 40°C; max fluid temp 110°C

  • Power Range

    33 W

  • Size

    1.25” union

Water savings

  • Hot water recirculation with instant hot water at the tap reaps an average annual water savings of 12,000 gallons (based on a family of four spending over 90 hours per year waiting for hot water to arrive at the tap)



Easy and quick setup

  • Unique valve design for individual adjustment to specific installation needs (only such system currently available) 
  • Factory tested and pre-wired for maximum installation safety and convenience 
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360 Service and Support

Astro Express 2 Hot Water Recirculation - contractor sellsheet

Astro Express 2 Hot Water Recirculation - new home buyer sellsheet

Astro Express 2 Hot Water Recirculation - contractor booklet

Astro 2 Hot Water Re-circulation Systems - brochure

Hydronic Solutions - digital catalog

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