Positive Displacement Meter

It measures the gas flow by trapping it between two impellers that rotates in opposite directions. The bottom of impeller turns anticlockwise, allowing the gas to enter the space between the impeller and the casing. As the impeller reaches the horizontal position the measured the measure quantity of gas is contained between the impeller and case wall. As the impeller continues to turn, the gas discharges through to the outlet. It is Used for measurement of Gas at pressures between 1 bar to 4 bar & fluctuating load.