| 摘要 |
FIELD: machine building.SUBSTANCE: invention refers to valve building industry and is intended for shutting off a working medium flow in a pipeline. The valve includes a spool, a thin-wall seat made on an elastic diaphragm and a limit stop restricting a spool stroke. In the valve a provision is made at least for one elastic limit stop of the diaphragm, which provides its strength at pressures of sealing medium, which exceed the design one.EFFECT: invention is aimed at improvement of operating reliability of a valve owing to protecting it against destruction of its seat.4 dwg |
