| 摘要 |
<p>The device has a flexible connection device including a groove for O-ring, and a flat-bottomed hole connected with a female thread of a dosing pump that is provided with a valve case. A screw thread is similar to another screw thread of a union connector used for connecting pieces of a rigid pipeline. An interface (31) for connecting the pump and a rigid pipeline is arranged in a remaining portion of the connectors. Interfaces (32-34) connect the rigid pipeline and a flexible pipeline.</p> |
