Roots Rotary Positive Displacement Meters

The Rotary Style Gas Meter are designed to accurately measure the total volume of dry gasses and gas mixtures. The time tested and accepted Rotary Meters are permanently accurate which employs the rotary positive displacement principle. This built-in accuracy is fixed by precision machined impellers and a rigid measuring chamber. Measurement is not affected by changes in gas specific gravity of pressure nor by wide fluctuating flows.