| 摘要 |
<p>PURPOSE:To achieve cost down by improving building workability in a socket for a pipe fitting. CONSTITUTION:In this constitution, a spring 19 and a valve receiving part 11 are fitted to the periphery of a valve element 14, having a lock ball receiving part 25 in the point end, and also held by a seal ring 20, and a flange part 12, formed in the periphery of the valve receiving part 11, is interposed by a front tube part 2 having an operating sleeve 6 of a lock ball 5 and a rear tube part 3, so as to position the valve element 14.</p> |
