| 摘要 |
A flange integrated composite plastic pipe for connection is provided to stably connect a flange to prevent a water leakage by maintaining watertightness with a watertight packing and a watertight protrusion. A flange integrated composite plastic pipe(10,10a) for connection includes a curved groove(25), a plastic core(12), a watertight packing(14), a protrusive fixing unit, and a packing(16). The curved groove is formed at an inner circumferences of a flange(11,11a). The plastic core is placed in the curved groove. The watertight packing covers the plastic core and maintains watertightness of the inner circumference. The protrusive fixing unit covers an outer circumference of the flange and a part of an inclined surface, and is placed between the flanges. The packing has the protrusive fixing unit, and maintains watertightness with a coupling force of a coupling ring(18).
|
