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Hot waterrecirculating system with dedicated return line

Hot waterrecirculation valve

Lead-free bronze or stainless steel (pump casing), ceramic (pump shaft and bearings), PEI (impeller), EPDM (bearing seals)

Recirculatinghot watersystem diagram

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Hot waterrecirculating pump without return line

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The Armstrong Astro 2 hot water re-circulation system automatically circulates water through domestic water pipes. This ensures that hot water is available instantly at every tap throughout a residence. From a cost and environmental point of view, far less water is wasted each time a 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.

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