Electric pneumatic control valve is a throttling element resistance

Electric pneumatic control valve is throttling element, with resistance is produced fluid flow in the hydraulic system restraint and the pressure drop of the components. Electric pneumatic control valve maintenance is simple, easy to use, safe and reliable, is often used in water supply and drainage and automatic control, industrial system of control response is accurate, quick and according to the electrical signal remote control opening and closing pipe road system, realize the remote operation. Can choose ac 220 v electric pneumatic control valve, or dc 24 v, can be selected according to various occasions normally open or normally closed type. When from electric pneumatic control valve inlet side water supply, water flow through the needle into the main valve control room, when electromagnetic pilot valve to open, to control the indoor water flows by electromagnetic pilot valve, ball valve. Ball valve opening is greater than the needle valve opening, the main valve to control the indoor pressure is low, the main valve in the fully open position. When electromagnetic pilot valve is closed, the main valve control room of the water can't flow, control room booster, push the diaphragm close the main valve.