Butterfly valve having purge fluid supply means for the seal

Details Butterfly valve having purge fluid supply means for the seal Butterfly valve having purge fluid supply means for the seal

1977-02-17

1979-02-20

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

13724622, 251306, F16K 122

Patent

active

041401476

ABSTRACT:
A butterfly valve characterized by the addition of fluid purge supply means to prevent leakage.

REFERENCES:
patent: 1897781 (1933-02-01), Wille et al.
patent: 2705016 (1955-03-01), Saar
patent: 3020019 (1962-02-01), Fawkes
patent: 4003394 (1977-01-01), Adams

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