ANSI/ASSE (Plumbing) 1019-2011

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.

This product referenced by:ANSI/ASME A112.18.1-2011 - Performance Requirements for Wall Hydrants with Backflow Protection and Freeze Resistance
ANSI/ASME A112.18.1-2012/CSA B125.1-12 - Performance Requirements for Wall Hydrants with Backflow Protection and Freeze Resistance
This product replaces:ASSE (Plumbing) 1019-2004 - Performance Requirements for Vacuum Breaker Wall Hydrants, Freeze Resistant, Automatic Draining Type