Flare-type pipe joint

Details Flare-type pipe joint Flare-type pipe joint

1997-04-17

1999-03-30

Arola, Dave W.

Pipe joints or couplings

Particular interface

Tapered

2852931, 285910, 2989014, F16L 2500

Patent

active

058879129

ABSTRACT:
In order to improve the reliability of sealing property of a flare-type pipe joint, a flare-type pipe joint is designed such that a sealing material composition containing thermosetting resin, a curing agent, and fluororesin powder is applied onto a conical flange surface which abuts on a flare portion and then subjected to heat treatment so that the sealing material composition is subjected to crosslinking reaction to thereby form an elastic sealing layer. Further, it is preferable that the fluororesin powder is non-sintered fluororesin powder which is not subjected to crystallizing treatment made by sintering process.

REFERENCES:
patent: 3024047 (1962-03-01), Schmohl
patent: 3843764 (1974-10-01), Grawey et al.
patent: 4570981 (1986-02-01), Fournier

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