Low torque back seating stem for gate valve

Details Low torque back seating stem for gate valve Low torque back seating stem for gate valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 41/00 (2006.01) F16K 41/14 (2006.01) F16K 43/00 (2006.01)

Patent

CA 2116374

A gate valve adapted for stem back seating has a stem and bonnet assembly with a rotatable bearing ring to which the stem is releasably fixed during normal gate opening and closing operations. During back seating, the stem is released from the bearing ring and the bearing ring is fixed to the bonnet cap, enabling low torque back seating by rotation of the stem relative to the bearing ring and bonnet cap.

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