Dry powder fire extinguishers are widely used in public places and homes. The fire extinguisher is filled with Abc 90% Dry Chemical Powder(Abc Dry Chemical Fire Extinguishant),BC dry powder 50%, 70%,97%,etc. Due to the importance of fire safety and the popularization of fire knowledge, most people can now master the correct use of dry powder fire extinguishers, but there are still various problems. For example, dry powder fire extinguishers are under normal pressure. But what is the reason for not spraying powder?
1. The dry powder fire extinguishing agent in the bottle of the dry powder fire extinguisher agglomerates and deteriorates after being damp
From the validity period, the dry powder fire extinguishing agent is valid for five years. From the use conditions, the normal use temperature range of the dry powder fire extinguisher is -20 ℃ -55 ℃, it is recommended to store and use in a slightly dry environment, the environment has high humidity In the case of dry powder fire extinguishing agent, it is easy to produce agglomeration, and the dry powder fire extinguishing agent after agglomeration cannot be sprayed out.
2. The insurance sales are not pulled out at all
Each fire extinguisher will have a safety pin in the middle of the handle when it leaves the factory. The purpose is to prevent misuse. It needs to be refilled after misuse. As long as you know how to use the dry powder fire extinguisher, you will be able to cope with it when you put out the fire everyday.
3. The nozzle in the bottle is blocked.
The reason why the nozzle is blocked is that the dry powder fire extinguishing agent in the bottle is agglomerated after being damp. The lump powder enters the inner nozzle and it is easy to cause clogging. Before using, shake the dry powder extinguisher back and forth. Loose.
4. The pressure gauge of the dry powder fire extinguisher is damaged
The possibility of this situation is relatively small. The pressure gauge is a relatively precise product. The probability of damage is very small. The pointer of the pressure gauge is divided into three areas: the red area indicates that the pressure in the bottle is insufficient. If it cannot be used normally, it must be sent for repair. The green area indicates that the pressure in the bottle is within the normal range and can be used normally. The yellow area indicates that the pressure inside the bottle is high and can be used, but there are potential hidden dangers.
5. Dry powder fire extinguisher exceeds the expiration date
According to the national regulations on the maintenance and scrapping of fire extinguishers, the dry powder fire extinguisher is valid for 10 years, and more than 10 years must be obliged to scrap, but in real life, many friends are bought fire extinguishers, as long as the pressure is normal, put it there It doesn't matter. As everyone knows, the annual inspection of dry powder fire extinguishers must also be done every year.