| 摘要 |
Small amounts of viscous fluids are controlled. A valve seating has a circular through-flow opening; into it dips a valve body which can be displaced axially. The body is a cylinder whose dia. corresponds to the i.d. of the opening of the seating. From it a wedge-shaped broadened part is cut off in the direction of dipping. Pref. the opening has a sleeve-shaped insert of plastics, e.g. of polymethylene oxide (Delrin, RTM). |
