apply a gas water heater combustion heater BBQ gas appliance for control components

when the gas stove ,gas water heater and boiler volume ,gas overns and other products in the course of the loss due to accidental flame thermal power components ,then the fitting lost power due to rapidly close the gas path,thereby gas leakage to poisoning ,fire and explosion accidets .

Inner resistance

according to its type and length and the tolerance is in ±10%