Applications & User Benefits
Wet-test (drum-type) gas flow meters are used universally to measure and record gas volume and gas flow rate for many industrial, petroleum and chemical processes; environmental; pilot plant or test; controlled chamber; laboratory and research applications.
Wet-test meters consistently provide the highest accuracy and precision even at the lowest gas flows with inert or the most aggressive gases.

Measurement Principle
Wet-test gas meters function upon the principle of positive displacement. The sample gas stream rotates a measuring drum within a packing fluid, usually water or low viscous "white" (clear) oil. A needle-dial and counting mechanism, coupled to the rotating drum, records the volume of gas flow as it sequentially fills and empties from the drum's rigid, fixed volume measuring chambers.

Technical Data