Soft seating valves

Details Soft seating valves Soft seating valves

F - Mech Eng,Light,Heat,Weapons

16

K

137/4.2

F16K 17/40 (2006.01) F16K 7/12 (2006.01) F16K 43/00 (2006.01)

Patent

CA 1191419

ABSTRACT A diaphragm valve has an asymmetric compressor for moving the diaphragm between open and closed positions. The asymmetric compressor is movable carried by an operating spindle so that if, for any reason, the diaphragm is destroyed, the asymmetric compressor makes emergency sealing with the valve body, preferably downstream of the valve body in the direction of fluid flow through the valve. An emergency "indestructible" sealing member is preferably mounted in the compressor or valve body.

394340

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