| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe fitting for drainage, which provides a uniform pull-out preventing force along a circumference direction and is improved in workability. <P>SOLUTION: The pipe fitting is equipped with: a fitting main body 1 having flange parts 11a, 11b at both end parts; a pair of flange members 2 fastened with respective flange parts 11a, 11b; and a ring-shape packing member 3 mounted inner circumference side of the fitting main body 1 and the flange member 2, for sealing an outer circumference surface of a steel pipe. The packing member 3 has: a plurality of steel balls 5 contacting with the outer circumference surface of the steel pipe and provided in its circumference direction; and a plurality of spacer members 6 for contacting with an inner circumference surface of the flange member 2 and pressing the steel balls 5 to the steel pipe. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
