| 摘要 |
<p>A manifold valve comprises a main body (1) and drive portions (2), (3) having valve bodies (46), (47). In the main body, there are formed at least a set of a main flow passage-side valve chamber (17) and an auxiliary flow passage-side valve chamber (19) that communicate with each other through a connection flow passage (11); a branch flow passage (9) communicating with the main flow passage-side valve chamber; a main flow passage (6) linked to the main flow passage-side valve chamber via a main flow passage-side communication opening (13) open at the bottom center of the main flow passage-side valve chamber; and an auxiliary flow passage (7) communicating with the auxiliary flow passage-side valve chamber via an auxiliary flow passage-side communication opening (15) open at the bottom center of the auxiliary flow passage-side valve chamber. The main flow passage-side communication opening and the auxiliary flow passage-side communication opening are opened and closed by the valve bodies (46), (47), respectively, of the drive portions. Further, the connection flow passage and branch flow passage are structured such that their bottom portions are substantially on the same plane as the bottom portions of the main flow passage-side valve chamber and the auxiliary flow passage-side valve chamber.</p> |
