| 摘要 |
A method whereby the distribution device of a valve constituted by a train of valve-discs mounted on a common valve-stem is put in a preferential position, this position being attained by utilizing the pressure of the liquid which is present within the distribution device, said pressure being exerted independently of the operating means of the distribution device, on the complete valve train in order to subject this latter to a resultant force which always has the same direction. All the valve-discs which form part of the distribution device including the drain valve are grouped together on a common stem; the valve-discs are suitably dimensioned with respect to each other and the flow and leakage cross-sections are also suitably dimensioned; the forces arising from the flow of hydraulic fluid which are thus obtained tend to bring the distribution device into its predetermined preferential position.
|
