Diaphragm compression limit stops

Details Diaphragm compression limit stops Diaphragm compression limit stops

1997-12-09

2000-12-05

Lee, Kevin

Valves and valve actuation

Reciprocating valve

Diaphragm

92 96, F16K 31126

Patent

active

061555355

ABSTRACT:
A diaphragm-sealed valve having stops, mechanical means placed between a top and bottom plate to control assembled thickness and/or the amount of compression applied to the diaphragm which is placed between the top and bottom plate when the diaphragm-sealed valve is assembled together. The stops allow adequate compression to assure sealing while preventing overcompression because the stops prevent any further movement of the plates towards each other. Overcompression can result in reduced diaphragm life, diaphragm damage, areas of entrapment for contaminates and increases the force required to seal between the valve inlet and outlet.

REFERENCES:
patent: 1496935 (1924-06-01), Lemmon
patent: 1783281 (1930-12-01), Cox
patent: 3250511 (1966-05-01), Priese
patent: 4014514 (1977-03-01), Priese et al.

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