| 摘要 |
The aim of the invention is to provide a valve insert for a medium that flows from a primary pipe into a transversal pipe, or vice versa, preferably water, which has a universal application and the simplest possible construction. To achieve this, the invention discloses a valve insert comprising a screw-in body (10) with a hollow spindle (20) that is encased in the screw-in body. Said spindle has an upper transparent section that projects above the screw-in body and a seal (25) that lies in the interior of the screw-in body. The lower end of the spindle is connected to a valve body (30), which is located below the screw-in body and has an axial bore. A level gauge (40) extends through the axial bore of the valve body into the spindle and comprises a flow member (50) on the end protruding from the bottom of the valve body. According to the invention, a spring (48) that acts on the level gauge is contained in the spindle and a lower section (34) of the valve body (30) is cylindrical with an external diameter that is slightly smaller than that of the flow member (50). In one embodiment, said lower section (34) has a flat seal (38) in an area where it radially widens (32) and the spring surrounds the level gauge in a section (22) of the spindle that is covered by the screw-in body. In another embodiment, the valve body (30) comprises a deformable material. |
