Aliava avf250 series is a common used various flow meter in auto-industry process control. It's with small volume, wide range and easily operation. It could also measure liquid, gas and steam flow rate, especially fit for small flow rate application. Features 4 digit flow rate & 8 digit totalizer Local indication without auxiliary power 4-20 ma & scale pulse output Low pressure lost on gas and steam application Damper for gas/steam application Consistent overall length Heating jacket design Intrinsically safe & explosion proof for hazardous area Specification Size: 15, 20, 25, 40, 50, 65, 80, 100, 125, 150, 200 mm Measuring range: Liquid - 1 ~ 200000 liter/hr Gas - 0.03 ~ 4000 m3/hr Turndown ratio: 10:1 (20:1 optional) Accuracy: +/-1.6%(standard) +/-1.0%(optional) Material: Tube & float: Stainless steel 304 Stainless steel 316 Stainless steel 316l Stainless steel + ptfe liner Standard pressure: 40 kg/cm2 (15mm ~ 50mm) 16 kg/cm2 (65mm ~ 200mm) Flange type: Jis 10k / jis 20k / jis 40k / ansi 150# / ]ansi 300# / ansi 600# / din pn 10 / Pn 16 / pn25 / pn 40 Local display: Mechanical indicator (standard) Digit display: 4 digit flowrate 8 digit totalizer Protection class: Ip 65 Intrinsically safe, eex ia iic t5 Explosion proof, ex d iib t6 Pressure drop: 0.07 ~ 0.7 kg/cm2 Standard