ASSE 1053-2019, Performance Requirements for Dual Check Backflow Preventer Wall Hydrants – Freeze Resistant Type, has been designated as an American National Standard by the American National Standards Institute (ANSI) and is now available for purchase.

ASSE 1053 establishes design and performance requirements for freeze resistant dual check backflow preventer wall hydrants, which protect the potable water supply against backsiphonage and backpressure without damage to the device due to freezing. To verify protection under the high hazard conditions present at threaded hose outlets, these devices must be field-testable.