Bleed valve assembly for double block and bleed system

Details Bleed valve assembly for double block and bleed system Bleed valve assembly for double block and bleed system

1988-09-19

1989-07-11

Walton, George L.

Fluid handling

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

Cleaning or steam sterilizing

134167C, 137312, 137597, 137613, 251306, B08B 302, B08B 902, F16K 122

Patent

active

048462128

ABSTRACT:
A bleed valve assembly for use in a double block and bleed valve system having first and second block valves comprising a body which is disposed between the block valves which forms a chamber, a flowway having a generally smooth flowway surface defined by the body and partially defining the chamber, the body having a cavity which is in open communication with the chamber and a drain outlet in open communication with the cavity, there being disposed a valve assembly in the cavity which has a rotatable valve element which can be moved between a first open position permitting flow through the drain outlet and a second closed position preventing flow through the drain outlet, the valve assembly having a portion which partially defines the flowway surface when the valve element is in the second or closed position.

REFERENCES:
patent: 1332000 (1920-02-01), Pfau
patent: 2038132 (1936-04-01), Robinson et al.
patent: 3528447 (1970-09-01), Kolb
patent: 3581996 (1971-06-01), Boyer
patent: 3744319 (1973-07-01), Harmes, III
patent: 4067352 (1978-01-01), Halpine
patent: 4108199 (1978-08-01), Bonafons
patent: 4373545 (1983-02-01), Knappe
patent: 4458706 (1984-07-01), Scholes

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