Pressure regulator

Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface

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Details

123463, 251 85, 251337, F16K 1706

Patent

active

052793273

ABSTRACT:
A fluid pressure regulator of compact construction including an improved diaphragm-valve assembly interposed between a flow body and a second body cap element. The flow body has an inlet and outlet passage and a valve cavity with a centrally disposed ported valve insert to allow the regulated passage of fluid. Mounted to the flow body, the cap element confines a diaphragm of the diaphragm-valve assembly and houses an adjustable coil-spring biased against the assembly. The diaphragm-valve assembly includes a ring-shaped diaphragm element interlocated between a circular element central to the diaphragm and a diaphragm compression limiting clamp plate ring. The circular element has a central recess over the valve insert which houses a spring-backed self-aligning ball valve element having a flat chordal surface adjacent the insert. A convolute in the diaphragm element provides a more consistent effective area in relation to the valve stroke during operation improving pressure regulation and reducing stretching of the diaphragm preventing tearing, rupture or undesirable hysteresis.

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patent: 4825835 (1989-05-01), Deweerdt
patent: 4928729 (1990-05-01), Hornby
patent: 5076320 (1991-12-01), Robinson

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