| 摘要 |
In a pressure reducing valve, a valve mechanism including a valve body that can be seated on a valve seat is housed in a body and a valve shaft portion which is coaxially connected to the valve body is linked to a central part of a diaphragm. A diaphragm rod (85) that integrally has a first retainer (83) abutting against one face of the diaphragm (16) is inserted through the central part of the diaphragm (16); and at least a second retainer (84) is sandwiched between the other face of the diaphragm (16) and an engagement portion (89) which is formed by crimping one end portion of the diaphragm rod (85) on a spring chamber side, thereby forming a diaphragm assembly (90) including at least the diaphragm (16), the second retainer (84), and the diaphragm rod (85) that integrally has the first retainer (83). Further, the diaphragm rod (85) of the diaphragm assembly (90) is linked to the valve shaft portion (34b). Accordingly, the productivity at the time of assembling the pressure reducing valve can be enhanced. |
