Barksdale's High Pressure OEM Valve range offers exceptional directional control for liquids up to 206 bar in the toughest industrial applications. Using Barksdale's Shear-Seal® technology, the OEM Valves provide reliable performance and long life, even if the medium is contaminated with debris that would damage ordinary valves. Different flow patterns are built into this OEM line of the "Closed Center Manipulator", also known as "Float Center", where the flow in the middle position is blocked and the other ports are connected to the return port. Another version is the "Open Center Manipulator" also known as "Open Center", which has a flow pattern where all ports in the middle position are connected to the return port.