The flame arrester is suitable for storing the flash point below 28 DEG C A and B oil oil flash point below 28 DEG C, is also applicable to material storage vault tank cap with nitrogen, ZHQ and net type arrester principle used in the pipeline ibid.
With the breathing valve, breathing manhole supporting the use, also can be used separately.
Explosion resistance of qualified, thirteen consecutive trials can stop the fire every time.
Fire resistance, resistance to burn, 1 hours without tempering.