Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent
1981-08-05
1983-10-18
Michalsky, Gerald A.
Fluid handling
Back flow prevention by vacuum breaking
Air vent in liquid flow line
137218, 13762511, 13762546, F16K 2402
Patent
active
044100019
ABSTRACT:
An anti-siphon selector valve for directing fluid into one of a plurality of lines. The valve includes a valve body having an input port and a plurality of output ports and a U-shaped conduit assembly mounted on the valve body and selectively connectable between the input port and one of the output ports. A movable piston is located in the conduit assembly for sealing the conduit to the valve body. The valve further includes an anti-siphon valve assembly mounted in the U-shaped conduit assembly for venting the output port and the lines to which it is connected to the atmosphere.
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