| 摘要 |
The present invention is to solve a problem, for example, in a gas water heater where a gas passing through a solenoid opening and closing valve and a flow rate adjustment valve is supplied to a gas distributing device through a gas communication pipe, in which as a conventional pipe material is used, a flange part surrounding an end part of the pipe material is formed, and a connecting bracket is brazed, the cost for the connecting bracket is needed, the reliability of a brazing part is not high, and a yield rate is low. The gas communication pipe is constituted by sticking a pair of plate materials, a recessed part as a gas passage is formed on at least one of the plate materials, and a gas flowing in from a gas inflow port reaches a gas outflow port through the recessed part. |
