Hydraulic Check Valves

Hydraulic check valves direct fluid in one direction from an entry port through an exit port. They also eliminate fluid back pressure to prevent damage within a hydraulic system. Check valves come in different forms, including ball, diaphragm, and lift. Ball check valves use a spherical ball to close the valve and cut off fluid flow. Diaphragm check valves use a rubber diaphragm to keep the valve closed until uneven pressure differential opens it. Lift check valves have discs that are lifted by high pressure to open the valve and allow fluid to flow.