| 摘要 |
A pipe joint 1 comprises a fitting 10 connected with a hose 2 , a flange 20 pressingly holding the fitting 10 inserted into a through hole 21 toward a block 3 , a bolt 30 for fixing tightly the flange 20 to the block 3 , a metal seal 40 having "C" cross section so as to seal a joined portion of a communication passage 11 and a connection opening 3 a externally, and a first and a second O-rings 50, 60 so as to seal a contact portion of the fitting 10 and the block 3 . A projecting portion 24 is formed on a lower face 23 of the flange 20 , the projection portion 24 is formed at an area opposite to an area where the insertion hole 21 is formed with respect to a center axis of the through hole 21 , the project portion 24 projects from other portion of the flange towards the block 3 . A tip of the fitting 10 inserted into the through hole 21 projects towards the block 3 from the lower face 23 of the flange 20.
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