| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure-reducing valve by which allophone is less likely to be generated when gas flows through a communication channel.SOLUTION: A pressure-reducing valve includes a partition member 38 that partitions off a valve chamber 34 from a pressure regulating chamber and has a communication hole 381 for communicating the valve chamber 34 with the pressure regulating chamber. A valve body 40 has a main body part 41 positioned in the valve chamber 34, and a rod part 42 extending from the main body part 41 through the communication hole 381 to the pressure regulating chamber. Between a peripheral wall of the communication hole 381 in the partition member 38 and the rod part 42, a communication channel 50 is provided. On the peripheral wall of the communication hole 381 in the partition member 38, an annular groove 51 is provided over the entire periphery. |
