Valve without leaks or drift

The VO40 open centre directional control valve offers a lock valve section option designed for applications where it is a requirement that there is no function drift or leakage. Rated at 40 litres/min and 300 bar, the valve is a slotted design that allows up to ten sections to be stacked together. Contamination and corrosion of the spool and spool seal area is eliminated by an enclosed handle, according to manufacturer Parker Hannifin. Larger seals throughout are said to reduce problems caused by incorrect assembly or restacking.