| 摘要 |
PROBLEM TO BE SOLVED: To provide a header which is capable of arbitrarily determining the direction of a branch pipe and can be manufactured at low cost.SOLUTION: The header comprises a plurality of T-shaped header units 2 each including an inserting tube part 3 which is formed at one end side in a length direction, a fitting tube part 5 which is formed at the other end side in the length direction, and a connecting protrusion 16 for branch which is projected in a direction orthogonal with the length direction. The inserting tube part 3 of the header unit 2 can be inserted into an end portion 6a of a pipe 6 to be connected, and is formed to be connected by being inserted into the fitting tube part 5 of the other header unit 2. The inserting tube parts 3 are successively inserted into the fitting tube parts 5 in a freely rotatable manner, such that the plurality of T-shaped header units 2 are connected in the length direction. |
