Steering Valve Assembly is a power steering device. The center line of a cylindrical bore of a valve sleeve intersects the center line of a radically extending. A control valve is needed for controlling the flow of hydraulic fluid to a variable assist power steering valve assembly of an automotive vehicle. The hydraulic system further includes a power and a control valve for controlling the flow of hydraulic fluid from the pump to the valve assembly, an inlet line being provided to deliver hydraulic fluid from the pump to the control valve and a return line being provided to return hydraulic fluid from the valve assembly to the pump.