Gas valve and air valve to achieve a reasonable linkage

Gas valve and air valve to achieve a reasonable linkage, that is, to ensure that the burner fuel ratio is equal to the design value. We need to find out the actual flow of gas cooker safety valve at different opening degrees to determine the required air flow rate by the gas flow rate and the actual design of air-fuel ratio value. Then based on the actual work flow characteristics of the air valve, determine the required air valve opening. Finally, the valve opening degree of the relationship between the corresponding linkage design. Ball is a large flow capacity, short trip switch, the noise is small. Therefore, commercial gas stove are used as a ball valve.