| 摘要 |
A fluid control valve comprises a valve housing, a closure element (4) and a valve spindle, the valve housing being provided with a valve seat and with an axial, cylindrical, valve guide bore (7). The closure element is provided with a valve cone (9) and with a valve stem (10), slidably received inside the valve guide bore. According to the invention the valve stem comprises exterior bearing surfaces adapted for sliding engagement with the valve guide bore, and a groove or planar facet, whereas the valve guide bore comprises a key (16) for sliding engagement with the groove or planar facet in order to guide the closure element in non-rotatable engagement with the valve housing. |
