... Positive Displacement type Oil FlowmeterDiameter: 10~200mm Uniform rotator, small vibration, long working life. Typical Applications: Lubricating Oil, Epoxies, Fuels, storage tank flow meter ... , oil counter, tank truck flow meter Diameter:10~200mm Features, High accuracy, ... Solvents•Chemicals•Additives Oval Gear Positive Displacement type Oil Flowmeter