F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/54
F16K 5/00 (2006.01) F16K 5/06 (2006.01) F16K 5/20 (2006.01)
Patent
CA 1073888
Abstract of the Disclosure A ball valve having an eccentric ball element with spherical sealing surfaces arranged with primary and secondary sealing elements for coaction therewith for high pressure and/or cryogenic applications. The secondary sealing element is arranged to be responsive to upstream line pressures for moving the primary sealing element into and away from the ball element.
290265
Kosmala Ronald W.
Sanderman Karl K.
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