... gasoline,LPG,crude oil,fuel,etc flow meterMain Feature:OGM-A-25/40/50 aluminum oval gear meter has the ability to ... handle a wide range of fluid viscosities with exceptional levels of ... of petroleum, chemical processing medicine, transportation, food, etcTechnical SpecificationModelOGM-A-25OGM-A-40OGM-A-50Size1″1.5″2″Min.Flow Rate20L/min25L/min30L ...