| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure relief valve that achieves a large degree of flexibility of the setting size of a spring and allows effective utilization of a dead space of an inflow chamber in a pressure relief valve having an automatic valve-opening function and a forcible valve-opening function. SOLUTION: The pressure relief valve has the following structure. A spring retainer 24 is integrally provided on the outer periphery of a center plate 22 so as to be arranged in an outflow chamber 7 and to hold one end of a spring 35. A nut 25 is screwed to the outer periphery of the center plate in an inflow chamber 6. The inner-peripheral end of a diaphragm 21 is sandwiched and held by the spring retainer and the nut. COPYRIGHT: (C)2011,JPO&INPIT |
