Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Patent
1996-10-07
1998-04-28
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
137901, F16K 3118
Patent
active
057432929
ABSTRACT:
A pressure controlled check valve that includes a valve casing having a first opening and a second opening, a poppet valve operationally disposed in the second opening of the valve casing for opening when the pressure in the valve casing is greater than or equal to the pressure on the other side of the poppet valve, and an aneroid valve actuator located within valve casing for opening the poppet valve for reverse flow when the pressure within the valve casing is less than a predetermined pressure.
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Ferensic Denise L.
Kim Joanne Y.
McDonnell Douglas Corporation
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