... repeatability. 2. Uniform rotator, small vibration, long work life Helical rotor flowmeterDiameter: DN25-DN350Typical Applications: Lubricating Oil, Epoxies, Fuels, storage tank ... •High Viscosity Fluids•Epoxies•Polyurethane•Fuels•Solvents•Chemicals•Additives Helical rotor flow meter