Packing containment for live loaded fugitive emission seals

Details Packing containment for live loaded fugitive emission seals Packing containment for live loaded fugitive emission seals

1990-10-12

1991-10-15

Chambers, A. Michael

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

277 59, 277 72FM, 277124, F16K 3144

Patent

active

050567578

ABSTRACT:
A fluid valve for use in high pressure and high temperature operating conditions where the operating fluid is chemically reactive. V-type PTFE packing members are backed up with anti-extrusion wiper rings of silica filled PTFE or barium sulfate filled PTFE.

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patent: 4283062 (1981-08-01), Catanzaro et al.
patent: 4640305 (1987-02-01), Johnson
patent: 4886241 (1989-12-01), Davis et al.
patent: 4913951 (1990-04-01), Pitolaj

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