flame-resistant
4.When the fire breaks out, fire source may spread to the storage tank through the inlet, when the flame passes the small pore of the flame-resistant core layer in the flame arrester, due to the wall effect, the corrugating plate absorbs a great deal of heat, so as to increase heat loss at once, so that the flame is extinguished.
6.When the fire breaks out, fire source may spread to the storage tank through the inlet, when the flame passes the small pore of the flame-resistant core layer in the respiration valve, due to the wall effect, the corrugating plate absorbs a great deal of heat, so as to increase heat loss at once, so that the flame is extinguished.

