Valve for controlling liquid flow

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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137/29

F16K 31/00 (2006.01) F16K 31/24 (2006.01) F16K 31/34 (2006.01)

Patent

CA 1078703

ABSTRACT OF THE DISCLOSURE The present invention provides a valve for controlling fluid flow from an inlet of a closed valve housing to an outlet thereof, which valve comprises a stationary insert body disposed in said housing between the inlet and the outlet and at a certain distance from the inside of the housing said body including a channel extending from said inlet through said body and transversely extending cross channels, which cross channels extending from said through channel open at the rear side of at least one elastic gasket ring extending around the circumference of the insert body such that said ring in its inoperative position lies at a certain distance from the wall of the valve housing, and a piston which is slidably mounted in close fit through the wall of the valve housing so as to be movable to a position to close the outlet of the through channel which closure of the outlet increases the pressure in said through channel and also in said cross channels and increase the pressure against the rear side of the gasket ring thus causing said ring to move to close fit against the inside of the valve housing and thus prevent any connection between the inlet and the outlet.

282962

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