| 摘要 |
PROBLEM TO BE SOLVED: To prevent leakage of a fluid without using rubber packing. SOLUTION: A first joint pipe 100, a second joint pipe 200 and a manifold 300 are constituted by plastic. The external surface OT of the first pipe end 103 of the first joint pipe 100 and the inner surface IN of the second pipe end 202 of the second joint pipe 200 can be brought into surface contact with each other. The first pipe end 103 of the first joint pipe 100 is larger than the depth of the engagement hole of the second pipe end 202 of the second joint pipe 200 in the axial direction of the pipe. The maximum outer diameter Y1 of the pipe of the engagement end part W1 placed on the external surface OT of the first pipe end 103 and the inner diameter R1 of the pipe of the engagement end part X1 placed on the inner surface IN of the second pipe end 202 differ from each other in the radial direction of the pipe. The maximum outer diameter Y1 of the pipe of the engagement end part W1 of the first pipe end 103 is larger than the inner diameter R1 of the pipe of the engagement end part X1 of the second pipe end 202. COPYRIGHT: (C)2009,JPO&INPIT
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