Hand spray mounts with integral backflow prevention

摘要

A wall mount provides the normal hose connection for attachment of the hose of a hand-held spray head while integrating a backflow preventer in an aesthetically pleasing unit. The wall mount preferably uses two spring-biased check valves with an integral air inlet and check valve to form redundant backflow prevention as well as an active vacuum breaker which substitutes ambient air for dirty water in the case of vacuum build-up. The wall mount includes a seal and locking technique which permits exact set-up of the orientation and wall fit of the unit with simple tools. An alternate embodiment of the wall mount also integrates the hook which holds the handle of the hand-held spray head.