Diaphragm Gas Meter


Diaphragm gas meters are mainly used in measuring the volume of natural gas, city pipe gas, liquid gas, marsh gas and other gas.


The gas meter uses the pressure difference during the flow of gas in the body of the meter as power, and the relative positions of the valve seat and the valve bonnet to control the distribution of the gas flow. The capsule consists of two gas measuring chambers that are identical to each other. Each gas measuring chamber is divided into two identical small measuring chambers by a soft membrane. When the distributed gas enters into four small measuring chambers and pushes the diaphragm to swing freely, the movement of the diaphragm assembly drives the connecting rod mechanism (double crank rocker mechanism) through the rocker and causes the valve bonnet to perform rotational movement so as to control the inflating of the measuring chambers in sequence. With the exhaust gas, the gas meter continuously circulates, and at the same time, the crank gear of the link mechanism is driven to count by the gear drive mechanical counter, and finally the gas meter exhaust amount is displayed through the counter.