Shuangda Hydraulic Machinery is one of the professional proportional electrohydraulic relief and flow control valve manufacturers and suppliers in China,Website:http://www.chinahydraulic-valve.com, welcome to buy cheap and low price PQ valve, proportional relief and flow control valve, proportional relief and flow valve made in China from our factory.Usage and characteristicEFR proportional electro-hydraulic relief and flow control valve is composed by a proportional relief valve with its plug-in units, a proportional flow valve with its plug-in units, a safety valve and other components. EFR proportional electro-hydraulic relief and flow control valve can proportionally control both pressure and flow. EFR valve is an energy-saving valve and supply min. demand pressure and flow for the system; EFR valve have the advantages of high repeat precision, high reliability and strong anti-pollution ability.
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