Shuangda Hydraulic Machinery is one of the professional proportional electrohydraulic pilot relief valve manufacturers and suppliers in China,Website:://.chinahydraulic-valve.com, welcome to buy cheap and low price proportional relief valve, proportional pilot relief valve made in China from our factory.Usage and characteristicWith the features of quick response and high precision, ER-G01 proportional electro-hydraulic pilot relief valve is composed by a proportional electromagnet and a direct-action relief valve. ER-G01 valve is suitable for the small flow hydraulic system with many pressure change tiers, and it can also be the remote pilot application of the relief valve and pilot application of proportional electro-hydraulic control valve with big norminal size. ER-G01 valve can control the pressure of the hydraulic system by inputting an current proportion. This valve must be used with a dedicated proportional electronic card.