The RAY 8020, pump control valve is made to protect pumps from possible damages caused by powerful start-ups and shut-downs of centrifugal pumps. The valve's purpose, is primarily minimizing the formation of surges during on/off operation of the pump, and pretect pump from backflow. The valve is electrically interlocked with pump's control panel. Opening and closing speed can be adjusted, offering a smooth start-up and shut-downs. By the action of a pilot, the pump control valve is also used to regulate maximum flow.