| 摘要 |
<p>PURPOSE:To reduce the containing space at the time of laying cable by restricting projection of a part of connector from the outer periphery of casing thereby making compact a joint box. CONSTITUTION:A piping unit comprising a valve unit constituted of a connector body 6 secured from the inner side of a casing 4 to the bottom part of a recess 5 in the casing 4, a spring 12, a stopper 13, and a valve 14 is integrally tightened through bolts 20 to the casing 4 having a flange and jointed through plumbing part to an OF cable.</p> |
