Fluid handling – Systems – Multi-way valve unit
Patent
1977-03-17
1980-01-01
Rosenthal, Arnold
Fluid handling
Systems
Multi-way valve unit
251 611, F16K 717
Patent
active
041811518
ABSTRACT:
A diaphragm valve includes an apertured diaphragm plate that separates mutually concentric input and output valve chambers. A flexible diaphragm extends somewhat loosely across the plate and seals an operating chamber on one side of the plate. The chamber contains a spring pressed retainer plate having a sealing lip bearing against, but otherwise unsecured to, the diaphragm so that by controlling pressure within the operating chamber, the primary sealing closure is broken and the retainer plate apertures may be progressively blocked or unblocked as the diaphragm moves to and from the diaphragm plate apertures.
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Cla-Val Co.
Rosenthal Arnold
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