Description
Operation description:
VP-NDV type throttle/check valves are used to throttle the pilot and main flow of hydraulic fluid in lines A and B. These valves consist of two throttles that have adjusting screws and two check valves that are built into the housing.
From the V direction to the P direction (see hydraulic symbol), the hydraulic fluid flows through the check valve with a low pressure loss.
And from the P direction to the V direction, the flow of hydraulic fluid is throttled depending on the throttle adjustment.