Parker C4V Check Valve – Direct / Pilot Operated

Parker C4V valves are available as direct operated or hydraulically pilot operated check valves. Their robust and versatile design ensures reliable leak-free blocking of flow in a vast range of applications. They are equipped with a leak-free seat cartridge.

They are available in 3 sizes: NG10 | NG25 | NG32 with maximum pressure set at 350 bar.

Direct operated C4V check valves allow free flow from A to B. The counter direction is blocked. The C4V series is equipped with a leak-free seat type cartridge.

The pressure arising in port A lifts the poppet from the valve seat and releases the flow to B. In the counter direction, the spring and the pressure on top of the cartridge hold the poppet onto the seat and block the flow.

Hydraulically pilot operated Parker C4V check valves allow free flow from A to B. The counter-flow direction is blocked. When pressure is applied to control port X, the ring chamber flow from B to A is released. Up to four different pilot control ratios are available – see the technical details tab.

When no pressure is applied to the X-port, the flow from B to A is blocked, because the pressure in B is also in effect on top of the poppet. Pressurising the X port relieves the area on top of the poppet to the drain port and allows flow from B to A. The seat design of the SVL valve series provides leak-free separation of port A and B in the closed position.

Contact us for further technical details and configuration options.