SITRANS F R Rotary-piston meters |
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Characteristics: Benefits • 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 Application For use in closed liquid circuits at pressures up to PN 63 (MWP914 psi) and liquid temperatures up to 300 °C (572 °F). • For all liquids ranging from lubricating oils up to corrosive acids, viscosity ≤ 0.2 mPa s (cp), and for pasty, viscous liquids (e.g. colors for offset printing with 350 000 mPa s (cp)) • For measurements requiring an accuracy associated with custody transfer. A prerequisite for exact measurements is that the liquid is homogeneous without coarse solid impurities or gas inclusions. Rotary-piston meters are mainly used in the petroleum industry, the raw material industries, the chemical industry, the foodstuffs and beverage industries and in power stations and district heating stations: In the basic version (meter mechanism and register) for metering in the production, distribution and consumption of liquids. • With quantity preset register and mechanical shut-off valve as an automatic batchmeter without a power supply • With accessories (pulser etc.) for flow rate measurement, remote metering and digital data processing They complement one another with respect to the flow rate ranges but have particular advantages for specific applications. Rotary-piston meters are approved for custody transfer in the European Union and in many other countries. Download Datasheet (1,42 MB) |
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