| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe expansion device which can prevent deterioration of productivity, breakage of the device and the like even if various specifications of a heat exchanger are changed.SOLUTION: In a pipe expansion device which is provided with side restriction bodies 26 for positioning a heat exchanger 15 at a pipe expansion position in a state of holding the heat exchanger 15, the side restriction bodies 26 are detachably mounted through a magnet 28 to at least either a back restriction body 25 of the heat exchanger 15 installed in the pipe expansion device or an acceptor 24 installed with the back restriction body 25. |
