Selective mode handwheel valve operator

Details Selective mode handwheel valve operator Selective mode handwheel valve operator

F - Mech Eng,Light,Heat,Weapons

16

K

251/20

F16K 31/05 (2006.01)

Patent

CA 1060423

ABSTRACT OF THE DISCLOSURE The disclosure is of a selective-mode valve operator comprising a handwheel adapted to be mounted on a valve body with an output sleeve keyed onto the input shaft or stem of the valve. A motor may be mounted directly onto the handwheel, and locking means selectively lock the handwheel to the output sleeve or to a stationary member. When the handwheel is locked to the output sleeve, shift means prevent motor operation, and when it is locked against rotation the shift means enable motor operation. The shift means pass through a neutral condition whereby one mode is inactivated before the other mode is activated.

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