FLARELESS TYPE PIPE CONNECTION STRUCTURE, VALVE, FLARELESS TYPE PIPE JOINT, AND REFRIGERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a flareless type pipe connection structure in which a pipe-insertion size is properly adjusted in the completion of pipe connection, even when the pipe connection is operated in the state where a pipe is insufficiently inserted into a pipe insertion port, and to provide a valve, a flareless type pipe joint, and a refrigeration device, using the flareless type pipe connection structure.;SOLUTION: The flareless type pipe connection structure includes a spacer 4 equipped between the inner peripheral surface of the pipe insertion port 16, which is formed in a joint body 1, into which a pipe P to be connected thereto is to be inserted and the outer peripheral surface of the pipe P. The spacer 4 is moved integrally with a ferrule 3 by fastening of a coupling member 2, and the pipe P is restrictedly moved by the movement of the spacer. The spacer 4 is constituted so that the end of the pipe P is abutted on a step portion 18 of the pipe insertion port 16 and the end of the spacer itself is abutted on the step portion 18 of the pipe insertion port 16 before the edge portion of the ferrule 3, specifically, a back edge portion 36a and a front edge portion 36b, are bitten into the pipe P.;COPYRIGHT: (C)2010,JPO&INPIT