Pilot check valves are used to block the actuator in both directions. Flow is free in one direction and blocked in the reverse direction until pilot pressure is applied. This valve is ideal for very short cylinders and is fixed to them by a drilled bolt supplied with the valve.
Zinc-plated steel with internal parts in hardened and ground steel
Connect V1 and V2 to the supply and C1 and C2 to the actuator by the screw.