Sanitary water valve

Details Sanitary water valve Sanitary water valve

1996-04-16

1998-03-24

Michalsky, Gerald A.

Fluid handling

Back flow prevention by vacuum breaking

Air vent in liquid flow line

137801, F16K 2404, E03C 110

Patent

active

057301735

ABSTRACT:
A valve device is provided, the base of which includes a lower valve seat of a reflux and aerating valve, which is inserted into a hollow space located above the taps. The hollow space is sealed at the bottom and open at the top and/or side. If the valve device has any sealing flaws, the leaking water is collected, and air flows into the valve device via the hollow space if the pressure in the main water supply drops. If any water seeps out of the valve device due to sealing flaws in the valve, water flows from the lower valve seat to the hollow space of the separator wherein it collects and flows out through the opening in the separator. As a result, leakages in the fittings can be detected easily and quickly.

REFERENCES:
patent: 4977920 (1990-12-01), Oberdorfer
patent: 5009247 (1991-04-01), Oberdorfer
patent: 5079781 (1992-01-01), Gnauert et al.
patent: 5095554 (1992-03-01), Gloor
patent: 5123437 (1992-06-01), Egli et al.
patent: 5213131 (1993-05-01), Gnauert et al.
patent: 5213268 (1993-05-01), Gnauert et al.
patent: 5217040 (1993-06-01), Hochstrasser
patent: 5329957 (1994-07-01), Semchuck et al.
patent: 5454396 (1995-10-01), Hochstrasser

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