D633/634 Direct driving type series servo proportional valve
1) Totally replaced  by  531/32  servo valve 
2) With Same mounting size     
3) Flow range10-200L/min     
4) High frequency response     
5) Stable working status in servo actuating system 
6) Lower price and thoughtful service    
30 series servo valve; 31 series  servo valve; 35 series servo valve; G761/ G760 servo valve; 062-191C servo valve; G730 servo valve; G631 series servo valve; D072 series servo valve; D633/634 Direct driving type series servo proportional valve; G791/792 series servo valve