Anti-oscillating diaphragm construction

Details Anti-oscillating diaphragm construction Anti-oscillating diaphragm construction

F - Mech Eng,Light,Heat,Weapons

16

K

137/34

F16K 7/00 (2006.01)

Patent

CA 1056256

ABSTRACT OF THE DISCLOSURE A diaphragm valve construction for use with servo-regulated valves which substantially eliminates the problem of outlet pressure oscillation under low-flow high inlet pressure conditions. Briefly, the main diaphragm valve is constructed so that a larger effective area is provided on one side of the main valve seat than on the other, resulting in a hinging effect on the valve as it closes and opens. Under critical low-flow high inlet pressure conditions, one side of the main valve actually remains on the valve seat while the other side is lifted away from the seat to permit flow through the valve.

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