| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure control valve allowing simplification of washing operation for its portions in contact with fluid, while also avoiding troubles such as accumulation of air in chambers. SOLUTION: The pressure control valve 10 comprises a first chamber 12 with an inflow part 13; a second chamber 14 with an upper outflow part 15 and a lower outflow part 16; a body 11 with a valve seat 18; a rod part 21 with a valve part 22 for opening and closing the valve seat; and a valve mechanism body 20 with a first diaphragm part 30 and a second diaphragm part 40. The first diaphragm part separates the first chamber into an inner first valve chamber 51 and an outer first pressure regulating chamber 52 and the second diaphragm part separates the second chamber into an inner second valve chamber 55 and an outer second pressure regulating chamber 56. Pressure regulating means M1 and M2 for regulating the respective diaphragm parts are provided in the respective pressure regulating chambers.
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