| 摘要 |
PROBLEM TO BE SOLVED: To mixedly dispense liquids to a main line simply and surely by providing a disk valve fitted with one end to a connection section of the main line and a side dispensing line, and opening/closing the main line and the side dispensing line. SOLUTION: A disk valve 7 is opened/closed by flowing liquid pressures, and a main line 2 and a side dispensing line 3 are opened/closed by one disk valve 7. When a liquid pressure is applied to only one of both lines and no liquid pressure is applied to another line, the disk valve 7 closes the line applied with no liquid pressure. When the liquid pressure of one line is small and the liquid pressure of another line is considerably large, the disk valve 7 closes the line applied with the small liquid pressure. When the liquid pressures of both lines are 50g/cm<2> or above and they are substantially equal with no liquid pressure difference, the tip of the disk valve 7 is kept at the intermediate position between upstream/downstream side stoppers 8a, 8b, and both lines are kept at the open state to feed liquids. |
