| 摘要 |
A safety valve has an arranged with at least two valve modules placed in parallel in the body valve module, at that the valve module has pressure and drain ports connected to the pressure and drain channels of the body, respectively. In the pressure port with possibility of displacement a spool is installed, the spool is arranged with closed axial and through radial openings, in the part connected to the spool, downstream of the radial openings of the spool in direction of liquid flow at its neutral position a groove is arranged, there a ring gasket is placed. In the valve module a spring with stopper is placed, this is in contact with the spool. |
