Rotary Gas Flow Meter (for pressures up to 100 bar)

The FMG-HP series of rotary gas meters is designed to meet the highest demands of reliable and accurate measurement of gas flow under high pressure conditions. The meters fully comply with the EN12480:2002, EN12480:2015 and OIML R137 1&2 (2014) and as such can be used for all custody transfer applications.

The actual meter body is made from aluminum and is kept in position by a steel meter housing. This housing holds the meter body, without any stress, in position between the adjacent flanges. Since the meter body is not affected by stress from the flanges or the piping, the clearances between the impellers and the body are optimized. As such the superb metrological performance achieved in the low pressure FMG rotary meter is maintained under high pressure conditions as well.

Due to the large rangeability of 1:100, the FMG-HP rotary meter is very suitable for small city gate stations as the actual load of this type of station varies widely. Square impellers and improved position of the main bearings makes the cartridge very robust and less sensitive to flow and pressure shocks. Unlike other approved flow metering devices, such as turbine meters and ultrasonic meters, a rotary meter can be installed close to regulators and without the need for extended straight pipe or specially prepared inlet sections.