flow meter (smith meters, gravity flowmeters) flow meter (smith meters, gravity flowmeters)Characteristics •FMC series PD rotary vane meters are single case, angle- ... type, rotary vane, positive displacement meters.•Superior accuracy and metering for a wide range of products, ... .Working Pressure150PSIAccuracy±0.2%Repeatability0.07% flow meter (smith meters, gravity flowmeters)