| 摘要 |
PROBLEM TO BE SOLVED: To provide a decoupling prevented pipe joint which has excellent workability after cutting a pipe at working site, and can prevent the deformation in each part from occurring. SOLUTION: A welding bead 38 is formed in the outer periphery of a portion in which a plug 34 is not inserted into a socket 33. A plug ring 39 capable of being engaged with the welding beat in the pipe axial direction is fitted into the outer periphery of the plug 34 located further apart from the socket 33 than the welding beat 38. A socket ring 43 capable of being engaged with a flange-like projection 36 formed in the outer periphery of an end of the socket 33 is fitted into the outer periphery of the socket 33. The plug ring 39 and the socket ring 43 are mutually fastened with a plurality of bolts 47 pipe-circumferentially arranged in the pipe axial direction. A distance piece 49 is inserted into the position corresponding to the bolt 47 in the pipe-radial direction between the plug ring 39 and the socket ring 43. COPYRIGHT: (C)2007,JPO&INPIT
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