Double-seat valve unit leakage control

Details Double-seat valve unit leakage control Double-seat valve unit leakage control

1981-06-02

1983-01-18

Walton, George L.

Fluid handling

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

Cleaning or steam sterilizing

137312, 13761417, 13761418, 13761419, 1376372, 137315, 134166C, B08B 902, F17D 301

Patent

active

043687539

ABSTRACT:
A double-seat valve unit with leakage control has a greater valve plate located below a smaller valve plate, adjusting bars connected with the valve plates and arranged so that the adjusting bar of the greater valve plate extends through the interior of the adjusting bar of the smaller valve plate and both valve plates move to an open position from above downwardly, a leakage conduit having a portion located inside a valve housing and movable outwardly, an annular gap formed between the adjusting bars for flowing of cleaning fluid, and a return valve formed by the lower valve plate.

REFERENCES:
patent: 3076474 (1963-02-01), Skomp
patent: 4274433 (1981-06-01), Schnall
patent: 4304251 (1981-12-01), Schadel

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