JOINT CONSTRUCTION OF PLASTIC PIPE

摘要

PROBLEM TO BE SOLVED: To provide a joint construction of a plastic pipe having excellent durability even when used for high-pressure fluid transportation.;SOLUTION: In the joint construction of the plastic pipe, a fiber-reinforced layer 3 is cut away from pipe ends of two plastic pipes 1, 1 wound with the fiber-reinforced layer 3 on the outer periphery of a pipe main body 2 respectively. The exposed pipe main bodies 2, 2 are butted with each other. The outer periphery of the butted portion of the pipe main body is sheathed with a plastic joint pipe 5, and the joint pipe 5 and the pipe main body 2 are electrically fused. Lock rings 8, 8 are fitted on the fiber-reinforced layer outside both ends of the joint pipe 5 respectively. The lock rings are energized to the joint pipe 5 side, and the fiber-reinforced layer 3 is sandwiched.;COPYRIGHT: (C)2007,JPO&INPIT