Restrictor valve operator

Details Restrictor valve operator Restrictor valve operator

F - Mech Eng,Light,Heat,Weapons

16

K

137/138, 251/14

F16K 31/04 (2006.01)

Patent

CA 1271179

Abstract Of The Disclosure A remote control operator for a fluid flow restrictor valve having a flow passageway opened and closed by an angularly rotat- able disc moving ports into and out of alignment with companion ports. The valve operator comprises tangentially disposed part- circular plates with one plate secured to the restrictor valve rotatable disc and the other plate angularly rotated by a revers- ible drive motor. A flexible strand, secured at its ends to dia- metrically opposite portions of one plate, is tautly entrained intermediate its ends around portions of both plates in cooperat- ing grooves formed in the arcuate peripheries thereof. Energizing. the motor in respective directions angularly rotates the plates for opening and closing the valve flow passageway.

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