| 摘要 |
Provided is a pneumatic valve (1) in which a seal member (13); a shaft (4) provided with a valve body (2) capable of abutting against the seal member (13); and a valve-actuating pressure chamber (21) that moves the shaft (4) in an axial direction to actuate the valve body (2) is provided within a valve casing (3). The shaft (4) has a first member (30) that receives pressure from the valve-actuating pressure chamber (21), and a second member (40) that includes the valve body (2) and is movable relative to the first member (30) in the axial direction. The pneumatic valve (1) further has a stopper (50) that is provided in a movement path of the first member (30), and a disc spring (51) that is sandwiched between the first member (30) and the second member (40), has elastic energy accumulated therein in a state where the first member (30) is in contact with the stopper (50), and presses the valve body (2) against the seal member (13). |
