| 摘要 |
<p>The flow controller is capable of optionally controlling flow volume of controlled flow and reducing weight and a production cost. The flow controller comprises: a main body (2) having a first flow path (2a) and a second flow path (2b); a ring packing (10a) for sealing the flow paths (2a, 2b); a rod-shaped flow control member (12) tightly pierced through the ring packing (10a) and capable of moving with respect to the ring packing (10a), the flow control member (12) having a third flow path (12b); operation means (4) for moving the flow control member (12) so as to control the flow volume; a fourth flow (2h) path provided outside of the ring packing (10a); and a check valve (10b) prohibiting a fluid to flow from the second flow path (2b) to the first flow path (2a) via the fourth flow path (2h) and allowing the fluid to flow from the first flow path (2a) to the second flow path (2b) via the fourth flow path (2h).</p> |
