Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1984-03-26
1987-04-21
Scott, Samuel
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
251118, 251331, 251337, 13762533, 137489, 267 43, F16K 717
Patent
active
046590625
ABSTRACT:
A flowgrid regulator for use as a flow control device in conjunction with a pilot system. The invention includes a valve body, containing a flow barrier, that connects to a spring casing with a throttling plate, spacer and diaphram sandwiched therebetween. The throttling plate intersects the barrier and includes openings on either side of the barrier intersection for passing a flow under pressure therethrough. The diaphram is constructed of a non stretchable flexible material and is maintained to move vertically above the throttling plate to position a throttling element bonded thereto into covering engagement with the throttling plate openings. The diaphram position is controlled by a combination of spring force and pressure differential as supplied by the pilot system connection thereto to urge the throttling element against the throttling plate openings thereby controlling flow area and flow rate.
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Price Carl D.
Russell M. Reid
Scott Samuel
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