| 摘要 |
A flow valve which is driven by the angular displacement of an axial controlling stem, consisting in a valve body with a substantially cylindrical axial inlet or hole having a forward narrowing or opening in one of its ends. There is a tight ring-shaped butt i n the inner wall of the axial hole, in which a controlling stem is located and axially oriented to t he valve body. This controlling stem projects outwards the valve body through the forward narrowing or opening of the axial hole. A sealing ring is arranged in radial contact with the forward portion of the controlling stem, which is located inside the valve body. One of the modalities of the valve of the invention consists in a multiple or compound valve made up of a circular array of a number of valves of the first modalities, each one of them associated with the corresponding outlets of the multiple valve.
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