| 摘要 |
PURPOSE:To reduce a fluid leakage as well as to switch a fluid passage, by making both first and second valve bodies alternately contact with a bottom part of the hole that these bodies are fitted, and forming a ring seal line there. CONSTITUTION:A valve body 1 is fitted in one side of paired holes 31 and 31 and a valve body 2 in the other side, respectively, and the valve body 2 is fitted in one side of paired holes 32 and 32 and the valve body 1 in the other likewise respectively. Each valve body 2 has a fluid passage 21 whose one end is opened to a valve tip while the other end is opened to a valve rear end. A fluid access port P is installed in each hole wall of these holes 31 and 32 where the first valve body 1 is fitted, and fluid access ports A and Q in the hole 31 in these holes 31 and 32 where the second valve body 2 is fitted as well as other fluid access ports D and Q in the hole 32, respectively.
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