| 摘要 |
A protective four-circuit valve comprises a lower body with inlet and four outlet channels, two of which are equipped with check valves, an intermediate body with four hollow inserts fixed therein - one insert for each outlet channel, which by seats arranged around their axial holes interact with spring-loaded diaphragms fixed along the contour and form two sub-diaphragmatic cavities. The valve is equipped with the diaphragms of variable cross section - with increased thickness in the area of their attachment along the contour and with a peripheral belt on their outer perimeter, which is located in the corresponding cavity outside the area of attachment of the diaphragms. |
