Shuangda Hydraulic Machinery is one of the professional cam operated directional valve manufacturers and suppliers in China,Website:://.chinahydraulic-valve.com, welcome to buy cheap and low price cam operated directional valve made in China from our factory.Usage and characteristicMechanical directional valve type DC controls the direction of the oil by mechanically moving the position of the spool in hydraulic system. As the flow channel of the valve is designed in a special structure, the internal resistance of the valve is very small so that to reduce the internal pressure loss of the valve, improve the energy efficiency and extend the service life of the valve.