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ASSE Standard #1019-2011(R2016)

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Performance Requirements for Wall Hydrant with Backflow Protection and Freeze Resistance (ANSI Approved: January 2017)

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.

A downloadable version of this standard is also available.

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