+Hydraulic pilot operated check valves allow flow in one direction and prevents flow in the reverse direction unless cracking pressure is required to open the valve so then it allow the flow freely reverse.
+If the cracking pressure is closed, then the internal pressure in the system could be maintained. Two-steps design of pilot controlled check valves has been interchanged which is able to operate via lower pressure so then it reduces the noisy occurred by impulse so the quality is more advanced.
+Our hydraulic pilot operated check valves are suitable for high pressure, large diameter applications. The pilot operated safety valve has a good sealing performance, and its action is rarely affected by back pressure.
+The action is flexible, the function is reliable, the impact and vibration are small during work, the noise is small, and the service life is long.
+When the fluid passes through the hydraulic valve, the pressure loss is small; when the valve port is closed, the sealing performance is good, the internal leakage is small, and there is no external leakage.
+The controlled parameter (pressure or flow) is stable and the amount of change is small due to external disturbance. Compact structure, easy installation, commissioning, use and maintenance, good versatility