Compact manifolded fail-safe hydraulic control system

Details Compact manifolded fail-safe hydraulic control system Compact manifolded fail-safe hydraulic control system

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/124 (2006.01) F16K 17/10 (2006.01) F16K 17/168 (2006.01) F16K 31/143 (2006.01) F17D 3/00 (2006.01) F17D 5/00 (2006.01)

Patent

CA 2631371

A manifolded fail-safe hydraulic control system provides fail-safe operation of a pipeline valve using no more than a total of 45 proprietary parts in the system. The system controls the operation of a spring return actuator, which in turn strokes the pipeline valve from the normal operating position to the fail-safe position, or from the fail-safe position to the normal operating position. The system enables the valve to automatically stroke to its fail-safe position without external power.

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