Apparatus for safely installing and removing spring failsafe...

Details Apparatus for safely installing and removing spring failsafe... Apparatus for safely installing and removing spring failsafe...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/44 (2006.01) F15B 15/14 (2006.01) F16K 31/02 (2006.01) F16K 31/56 (2006.01)

Patent

CA 2324010

Apparatus for safely installing and removing spring loaded failsafe valve actuators. The apparatus includes a frame that retains a compression spring in a loaded condition between a cover plate fastened to the top wall of the frame and a spring seat slidably contained inside the frame. The spring seat is attached to the valve stem for moving reciprocally therewith between a closed and an open position. The stem is connected to the extendable rod of a remotely controlled actuator that is mounted in the cover plate and arranged to move the stem between the closed. and open positions. In the event the actuator fails while the valve is in an open position, the compressed failsafe spring is released to rapidly close the valve.

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