The IVDPCV is a spring-loaded Dual Plate check valve uniquely designed for applications. The constructional feature makes the valve much smaller in size, lighter in weight & makes it much more feasible in operation as compared to the conventional swing check valve.
IVDPCV valve employs dual spring-loaded plates/discs hinged on a central hinge pin. It operates on the differential pressure between fluid flow pressure & spring torsion pressure. As the flow pressure reduces, the plates tend to close with a cushion effect by spring torsion force thereby restricting the reversal of fluid flow.