| 摘要 |
PURPOSE:To feed water smoothly by extending main spindle, sub-spindle and auxiliary spindle in a gear case above the valve box while driving independently. CONSTITUTION:Main valve body A, sub-valve body B and auxiliary valve body C are arranged sequentially from the outercircumference of the flow path of valve box 1 toward the interior in the valve box 1. Sub-spindle 12 is arranged coaxially in main spindle 11 while auxiliary spindle 13 is arranged coaxially in the sub-spindle 12. Upon rotation of operating shaft 9 to rotate the first gear 10', the auxiliary spindle 13 will rotate to bring into slightly opened state. While upon rotation of a warm gear 4 through drive motor, sub-spindle 12 will rotate to bring into intermediate open state. Upon rotation of warm gear 3 through drive motor, main spindle 11 will rotate to bring into full-open state. |
