Controlled Valve Check

Functions

The pilot-operated check valve permits the free passage of oil in one direction and shuts off the entire flow rate in the opposite direction, direction B to A shut, direction A to B open. The closed direction B to A can be opened by feeding oil to the hydraulic pilot connection "d".

It is recommended that the valve has to be mounted directly to the cylinder to avoid the elasticity of hydraulic hoses causing slight displacement of the rod. The use of this valve permits to keep the oil in pressure inside the cylinder at the end stroke position, even if the oil pump pressure has been switched off.

Typical application will be the contrast of the injection pressure on a radial core displaced by an hydraulic cylinder, on a plastic injection or die casting mold.

We recommend to use the Valve on V450CM cylinders for short strokes and V215CR for long strokes.