Fluid flow control valve and actuator therefor

Details Fluid flow control valve and actuator therefor Fluid flow control valve and actuator therefor

F - Mech Eng,Light,Heat,Weapons

16

K

251/12, 137/43.2

F16K 31/126 (2006.01)

Patent

CA 1152479

ABSTRACT This specification discloses an actuator for a fluid flow control valve having a valve closure member actuator rod coupled to a plurality of diaphragms. Each diaphragm, along with an associated partition member encloses an elementary control chamber which is coupled by way of a transfer port to a source of control pressure signals.

374505

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