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Function

The valve is a metallic seal 3/3 way - seat valve. The opening and closing takes place by means of a hydraulic actuated set piston.

Normal-Position

After switching on the hydraulic and electric supply the set piston moves into the normal-position of the valve. No pressure increasing takes place. A to R open

Pressure increasing

The set piston moves to the right site and closes the R-Medium return line and opens the P-Medium Inlet. The pressure increasing takes place. from P to A

Pressure decreasing

The set piston moves to the left site and closes the G-Medium Inlet and opens the R-Medium Return. The pressure decreasing takes place. from A to R