| 摘要 |
PURPOSE:To simplify the control and lower the cost, by arranging rotatably a rotor between fixed plates having passages, the rotor being for changing over the passages and for shutting off the passages. CONSTITUTION:A rotor 40 is situated between a first fixed plate 41 having a plurality of passages 70, 60, 61, 62 and a second fixed plate 42 having a plurality of passages 73, 78 for changing over the passages or shutting off the passages. Thus, since functions such as supplying or collecting fluids using a plurality of on-off valves that are required in an attraction-separation system can be carries out by the single rotary valve, the control can be substantially simplified. Further as the number of valves can be reduced, the cost is also lowered. |
