Check valve assembly for high-pressure applications

Details Check valve assembly for high-pressure applications Check valve assembly for high-pressure applications

1992-04-21

1993-09-07

Michalsky, Gerald A.

Fluid handling

Line condition change responsive valves

Direct response valves

1375125, 137538, 13754323, 251 634, 417571, F16K 1704, F16K 1500, F16K 136

Patent

active

052419860

ABSTRACT:
A check valve having a valve housing with an outlet fluid passage and a housing valve cavity in communication with each other. A valve body has an inlet fluid passage and a body cavity in communication with each other. The valve body is sealably secured to the valve housing. A valve poppet is slidably mounted within the body cavity. The valve poppet has a central cavity. A side wall of the valve poppet has a poppet through hole which is in communication with the central cavity. The valve poppet has a poppet shoulder portion and an extension portion. A seal disk has a seal disk through hole into which the extension portion of the valve poppet is positioned. The seal disk is positioned within the housing valve cavity. A closure spring is used to normally urge the valve poppet into a closed position in which the valve poppet preferably abuts a sealing surface of the valve body.

REFERENCES:
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patent: 4862911 (1989-09-01), Yie
patent: 4953589 (1990-09-01), Nakamura

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