| 摘要 |
A pipe joint comprising a first pipe (1) having an externally threaded end (2), a second pipe (10) having an externally threaded end (12), a first line r (5) extending into the first pipe (1) with a portion (6) protruding from the end of the first pipe (1), a second liner (14) extending into the second pip e (10), with a portion (15) protruding from the end of the second pipe (10), wherein, in use, the portion (6) of the first liner (5) overlaps the portion (15) of the second liner (14), a collar (20) having internal threads (21, 22 , 23) which engage the threaded ends (2, 12) of the pipes (1), the first and second tube ends (2, 12), collar (20) and portions (6, 15) being dimensioned such that on making up the joint by threading the collar (20) to the first a nd second ends (2, 12) of the pipes (1, 10), the portions (6, 15) sealingly abu t each other where they overlap.
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