Double spiral-wound gasket assembly with leak detection

Details Double spiral-wound gasket assembly with leak detection Double spiral-wound gasket assembly with leak detection

1992-12-28

1994-09-20

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 2, 277180, 277203, 285 93, F16T 1532

Patent

active

053483103

ABSTRACT:
A gasket assembly with double spiral-wound gaskets and a middle draw-off port for leak detection in service with a process fluid featuring 1) an inner primary seal spiral-wound gasket with a high spring rate to hold the process fluid and pressure, 2) an outer secondary seal spiral-wound gasket with a lower spring rate to hold the process fluid temporarily while a new gasket is being installed, 3) inner and outer compression/gauge rings that allow compression of the spiral-wound gaskets to the proper thickness, and 4) a middle compression ring between the two spiral-wound gaskets that also provides a groove on each side in communication with a draw-off port for monitoring leakage from the inner gasket.

REFERENCES:
patent: 4309039 (1982-01-01), Irick
patent: 4410186 (1983-10-01), Pierce, Jr.
patent: 4673187 (1987-06-01), Hanson et al.
patent: 4888979 (1989-12-01), Steeper
patent: 5090871 (1992-02-01), Story et al.
patent: 5149105 (1992-09-01), Beaver et al.
Kempchen Packing Compensations Catalog, Section 5.4, Manufactured by Kempchen & Co. GmbH.

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