FLM Intelligent V-cone Digital Air Flow meter 1.Wide flow range 2.Long lifetime 3.Three types: ... industries like power, chemical, metallurgical, papermaking, environmental protection, petroleum and light and textile and so forth to measure the flow rate ... flow transmitter should be higher than 0.2 magnitude, including 0.2 magnitude) (β: 0.45~0.85, if β<0.55, measurement range rate is 4 ...