1) The arrow mark on the flash back arrestor refers to the direction of airflow under the normal work.
You shouldn't install it reversely, otherwise the gas cannot pass through. You should check the joint whether there is any
2) The flash back arrestor is forbidden to be opened. Once it is opened, you must do the efficiency test again. Qualified
ones need to present the conformity certificate again, or it cannot be installed to use.
3) Once the flash back have any damage, you must stop to use immediately and renew it to continue to use.
The flash back arrestor must force to be replaced after using for half a year.
4) You must do the inspection by using the qualified efficiency test equipment when examining and repairing the flash back arrestor, qualified ones need to present the conformity certificate again. If you haven't specialized efficiency test equipment, you need to replace the flash back arrestor instead of repairing.
5) The factory package should be placed in a dry and ventilated place, the flash back arrestor is forbidden to
touch anything smeary and corrosive. Do not throw it heavily or the flash back arrestor will be damaged.