LG orifice flow meter is a differential pressure generation device, with DP transmitter or DP gauge to measure various fluid flows in pipes. As the advantages of simple structure, stable performance and high accuracy, it can be applied for the liquid, steam and gas flow measure in modern industries. Orifice flow meter matched with DP transmitter can be used for flow measure of liquid, steam and gas in the field of petroleum, chemical, metallurgy, electric power and light industry etc.