... Control Valve(Water,Steam,Oil) Size:1''-20'' Pneumatic/Electric Type Cast Steel/Stainless Steel Best Price&Quality Pneumatic Control ... electric type)Two type: modulating/control type, shut off/on-off typeMedium: Water, Steam, Oil, Acid, ... sealing type, jacket insulation type, shut-off control typeWorkshop pictures: That are pneumatic type, we ... can contact us. Pneumatic Control Valve For Water Steam Oil