Helical rotor flowmeter 1. High accuracy, wide range, good repeatability. 2. Uniform rotator, small vibration, long ... work life Helical rotor flowmeterDiameter: DN25-DN350Typical Applications: Lubricating Oil, Epoxies, Fuels, storage tank flow meter ... , oval gear meter are ideally suited for measurement of viscous fluids or those with varying viscosities such ...