FIXING STRUCTURE FOR JOINT OF VALVE

摘要

PROBLEM TO BE SOLVED: To provide a simple and inexpensive structure for a joint of a valve. SOLUTION: In a valve 1 which is constituted by inserting and fixing a pipe-shaped joint 18 into/to an opening of a channel 12 in a valve body 7 having a plurality of channels, a fixing structure for a coupling of the valve comprises: a fitting portion provided with a fitting hole 22 formed at the opening of the channel 12 so that the joint 18 is inserted and fixed and has a diameter capable of force-fitting the joint 18; and a held portion formed to have a tapered diameter toward a depth direction to be continuous to the fitting portion and subjected to plastic deformation to fit to a shape of the held portion.