The rotary gas meter is often used for larger flow rates than a domestic diaphragm meter. It measures volume through two precision rotating elements.
How it works
Two lobes rotate within the meter body and transfer specific quantities of gas from the inlet to the outlet.
Advantages
It offers good accuracy over a wide flow range and is used in commercial and industrial installations.
Gas purity
Because it features mechanical parts with small tolerances, contaminants can affect its operation. Therefore, the condition of the upstream filter is important.
Checks
Noise, smooth indication, pressure drop, and any deviation from expected consumption are monitored.
