Pelton wheel turbine flow-meter LITRE METER

Litre Meter developed the Pelton wheel principle as the best to achieve accurate measurements of low flows.
A single turbine ring size is common to all Litre Meter flowmeters. The turbine rotor is based on a highly efficient 'Pelton Wheel' design. It is available in various chemically resistant materials such as PFA (Teflon)and PVDF. The rotor ferrites are sealed to make them non-wetted parts. Sapphire bearings are offered for maximum chemical resistance as standard. These provide a very low friction mechanically-robust bearing with long life characteristics.

The rotation of the rotor is sensed by an electronic system using the interaction of ferrites in the rotor tips with a pickup coil. No drag is imposed on the rotor which assists in the measurement of extremely low flows. This, coupled with the efficient Pelton Wheel design and low friction bearings gives the meter major advantages. The complete turbine ring assembly can be easily removed with the meter remaining in line if cleaning is required.

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