HOT WATER SUPPLY DOUBLE PIPE JOINT, HOT WATER SUPPLY DOUBLE HEADER, AND HOT WATER SUPPLY PIPING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a hot water supply double pipe joint reducing the number of components, having a compact configuration as a whole, and capable of connecting a hot water supply double pipe without difficulty.;SOLUTION: A terminal side hot water supply double pipe joint 10 connects a hot water supply double pipe, in which a hot water supply forward path is configured in the inside of an inner pipe and a hot water supply return path is configured in a clearance between the inner pipe and an outer pipe, and an appliance connection pipe to each other. The terminal side hot water supply double pipe joint 10 includes: a terminal side inner pipe connection sleeve 36 having a terminal side inner pipe connection port 43 to which the inner pipe is connected; a terminal side joint body 35, having one end at which a terminal side sleeve junction 37 into which the terminal side inner pipe connection sleeve 36 is inserted and joined and a terminal side outer pipe connection port 38 to which the outer pipe is connected are formed and the other end at which a connection pipe connection port 39 to which the appliance connection pipe is connected is formed. The terminal side inner pipe connection sleeve 36 further has a terminal side communication passage 46 having one end at which the terminal side inner pipe connection port 43 is formed and the other end communicating with the connection pipe connection port 39.;COPYRIGHT: (C)2014,JPO&INPIT