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Full Description

These devices shall have a permanent means to protect against backflow due to either backsiphonage or backpressure. The backflow protection shall include a minimum of two (2) mechanisms: an air inlet for preventing backsiphonage and a check valve for preventing backpressure backflow. These devices are terminal fittings that supply potable water to hose connections without danger of freezing.
 

Document History

  1. ASSE (Plumbing) 1019-2011 (R2016)

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    Performance Requirements for Wall Hydrant with Backflow Protection and Freeze Resistance

    • Most Recent
  2. ASSE (Plumbing) 1019-2004


    Performance Requirements for Vacuum Breaker Wall Hydrants, Freeze Resistant, Automatic Draining Type

    • Historical Version