To provide a pipe joint, not causing leakage of water even if high internal water pressure is applied to a fitting for a long time and hardly causing separation between a resin pipe connecting member and a metal fitting member even if the tube axial tensile force is applied.
A plurality of annular recessed grooves are provided in the outer peripheral surface of the end part of the metallic pipe connecting member, and the inner surface of the end part of the resin pipe connecting member connecting a resin pipe is integrated with the upside of a projecting and recessed structure part formed by the outer peripheral surface of the end part of the metallic pipe connecting member and the recessed grooves. An annular groove having a larger outside diameter than the outside diameter of the metallic pipe connecting member is provided along the circumferential direction on the outer peripheral surface of the end part of the metallic pipe connecting member, a metal-made fastening ring is put on the outer peripheral surface at the projecting and recessed structure part position of the metallic pipe connecting member, and the fastening ring is compressed to tighten the resin pipe connecting member and the metallic pipe connecting member.
JP2000291854A | 2000-10-20 |
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