... gas heaters, gas burn oven, gas appliances as control component. 1) Usage: it is suitable for gas heaters, gas burn oven, gas ... valve and the incentive effect, in which, the gas absorption, when the flame, thermocouple rapidly lose potential, ... compression spring and gas path, and safety protection. 3) Scope: natural gas, liquefied petroleum gas, the artificial coal gas. Gas magnetic valve JWM ...