Pipe joint, refrigeration device, and heat pump-type hot water device

摘要

A pipe joint includes a joint body 1 into which a pipe 4 is to be inserted and a coupling member 2 which is arranged around the pipe 4 to be inserted into the joint body 1. The joint body 1 and the coupling member 2 include screw portions 14a, 21a, respectively. The coupling member 2 is fastened to the joint body 1 by mutually screwing the screw portions 14a, 21a. The coupling member 2 includes a holding portion 22. A pair of or a plurality of pairs of holding surfaces which are opposite to each other are formed on the outer circumferential surface of the holding portion 22 so that the holding portion 22 can be held by a fastening tool. A part of the coupling member 2 including at least the holding surfaces is disconnectable from the remaining part of the coupling member 2.