Cashco, Inc.

W Keith Black

Jerold L Hlad

Wayne A Rohr

Daniel L Sharp

Bruce H Shiffer

Phillip G Rogers

The self-draining sanitary control valve includes a body having an inlet and an outlet and a fluid control port forming a valve seat between the inlet and the outlet. A bonnet is detachably secured to the body having a stem receiving bore aligned on a common central axis with the control port. Clamping rings are provided for securably clamping the body and bonnet together and for securing the valve body to adjacent fluid lines. The clamping rings are readily detachable for permitting the valve to be cleaned and the interior surfaces of the valve are closed to provide for self-draining of the fluid contained therein. The valve includes a stem slidably mounted in the bore with a valve plug at one end having a predetermined outer surface profile movable toward and away from the port and a flexible diaphragm is secured to a central portion of the plug for engaging the valve seat. An outer portion of the diaphragm is clamped between the body and the bonnet when the clamp ring is locked in place. A central portion of the flexible diaphragm is permanently secured to the profiled outer surface of the valve plug to provide a matching profile similar to the valve plug for cooperation with the valve seat to result in a predetermined flow characteristic that is dependent on the profile of the valve plug rather than the resilient characteristics of the diaphragm alone.

Self-draining sanitary control valve

A fluid pressure regulating valve apparatus for controlling either upstream or downstream fluid pressure includes a lower housing including a lower interior space and an upper housing including an upper interior space which is separated from the lower space by a deformable diaphragm. The diaphragm and lower space together define a substantially smooth, generally void free fluid receiving cavity with which first and second conduits are connected. The first conduit includes a constriction and the second conduit is angled relative to the first conduit. A valve is provided including a valve closure member movable between flow-permitting and flow-preventing positions. An upper stem element is connected to the diaphragm and extends through the upper interior space to an upper and disposed exterior of the upper housing such that pressure regulation and regulator adjustment may both be carried out from outside the lower housing.

Pressure regulating valve apparatus

A fluid pressure regulating valve apparatus for controlling either upstream or downstream fluid pressure includes a lower housing including a lower interior space and an upper housing including an upper interior space which is separated from the lower space by a deformable diaphragm. The diaphragm and lower space together define a substantially smooth, generally void free fluid receiving cavity with which first and second conduits are connected. The first conduit includes a constriction and the second conduit is angled relative to the first conduit. A valve is provided including a valve closure member movable between flow-permitting and flow-preventing positions. An upper stem element is connected to the diaphragm and extends through the upper interior space to an upper end disposed exterior of the upper housing such that pressure regulation and regulator adjustment may both be carried out from outside the lower housing.

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Salina, KS, United States of America

W Keith Black