... Pneumatic 2,DN:DN15-DN200 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1 ... signal action and double action ,the signal input/ortput:4-20ma.Installation(see folllwing ptcture).Pneumatic actuator 3 wit eletric ... axes NAMUR froove make the feedback,and fixed with 4 bolts,then connected air soure.Main parts materialsPartsMaterialPartsMaterialbodyA105, WC9 ...