VSE Helical Screw Flow Meter for hydraulic - VSE Volumentechnik GmbH
Petrotec - The Helical Turbine Meters (HTM) series of turbine meters from OGM is designed for high accuracy volume measurement of crude oils and other liquid hydrocarbons. M&T helical turbine meters are
What is a flow meter Helical Flow Meter, Positive Displacement Volumetric - YouTube