Flange seal

Valves and valve actuation – Reciprocating valve – Gate

Patent

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Details

251363, F16K 300

Patent

active

053301587

ABSTRACT:
A flange seal, disposed on opposed sides of a bore and chest liner embodied in a gate valve and secured to one of a pair of rings disposed in opposed sides of the bore section of the liner, enhances the integrity of the seal formed between the gate valve and each respective radial flange of a connected pipe.

REFERENCES:
patent: 3000608 (1961-09-01), Williams
patent: 3993092 (1976-11-01), Still
patent: 4026517 (1977-05-01), Still
patent: 4051863 (1977-10-01), Still
patent: 4112969 (1978-09-01), Still
patent: 4201365 (1980-05-01), Paptzun et al.
patent: 4231389 (1980-11-01), Still et al.
patent: 4895181 (1990-01-01), McKavanagh
patent: 4951919 (1990-08-01), Haglund et al.

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