Protection of sealing surfaces of metal face seals in tubing fit

Pipe joints or couplings – Molded joint – Weld

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285328, 285330, 285353, 285379, F16L 1302

Patent

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058297960

ABSTRACT:
A fitting includes two glands, each of which has a head with an attached tubing segment having a passage opening through a face on the respective head. A peripheral sealing bead on each head is normal to the axis of the head. Compression means draws the beads toward one another to press them against an intervening gasket to make a seal. A torque suppressor is rigidly mounted to each head, having a tongue with an axially extending complementary edge to contact a tongue on the other torque suppressor to prevent relative rotation of the heads while the compression means is being tightened. Optionally the lengths of the torque suppressor are such as to prevent abutment of the beads unless a gasket is placed between them.

REFERENCES:
patent: 4363337 (1982-12-01), Pease
patent: 5054822 (1991-10-01), McGushion
patent: 5066051 (1991-11-01), Weigl
patent: 5145219 (1992-09-01), Babuder
patent: 5163721 (1992-11-01), Babuder
patent: 5306052 (1994-04-01), McGushion
patent: 5308124 (1994-05-01), Yamaji et al.
patent: 5366261 (1994-11-01), Ohmi et al.
patent: 5673946 (1997-10-01), Barber

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