• High measuring accuracy (approved for custody transfer)
• Suitable for flow rates up to 1000 l/min (264 USgpm)
• Wide flow rate range
• Low dependence on viscosity
• Low pressure drop
• Simple compact design
• High reliability
• Advantages with extremely high viscosity since pressure drops up to 3 bar (43.5 psi) permissible
• Advantages with very low viscosity (e. g. liquefied gas) since only low pressure drops occur because of the light-weight mechanism with good running characteristics
• Wide range of available materials, e. g. plastic lining for particularly corrosive liquids
• Easy service as a result of simple design
• Liquid temperatures up to 300 °C
• Also available with external heater
• Metering and dispensing without a power supply
• No inlet or outlet pipe sections required
• Independent of flow profile, conductivity and damping

Rotary-piston meters are characterized by:

• Accuracy
• Reliability
• Robust design