Downstream sealing device

Details Downstream sealing device Downstream sealing device

1985-02-25

1986-03-25

Rosenthal, Arnold

Valves and valve actuation

With means to increase head and seat contact pressure

Fluid pressure

251327, 251195, 251328, F16K 320

Patent

active

045778345

ABSTRACT:
There are disclosed alternative embodiments of a downstream sealing gate valve of the type in which a pair of seats are carried within the body of the valve for sealing between the body and either side of the gate.

REFERENCES:
patent: 3132837 (1964-05-01), Britton
patent: 3215157 (1965-11-01), Anderson et al.
patent: 3228652 (1966-01-01), Antrim
patent: 3307826 (1967-03-01), Lowrey
patent: 3658087 (1972-04-01), Nelson
patent: 3834664 (1974-09-01), Atkinson
patent: 4068821 (1978-01-01), Morrison

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