| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, light, and inexpensive pressure-reducing valve whose structure is simple. SOLUTION: This pressure-reducing valve is constituted of a body 10, having a tube directional liquid passage inside, a separating plate 18 arranged in the body 10 for parting the liquid passage 16 into a primary side liquid passage 16A and a secondary side liquid passage 16B, a valve body 24 for seating or isolating a valve part 26 with respect to a valve seat 22 arranged around a valve opening 20 of the separating plate 18, so that the valve opening can be opened and closed, a piston 42 to be displaced after receiving the pressure of the secondary side liquid passage 16B, and a lever 46 arranged around a shaft 48 so as to be rotatable for transmitting a force from the piston 42 to the valve body 24, by multiplying the force according to the action of the lever, so that the closing of the valve body 24 can be driven.
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