How long is the dry powder extinguisher valid?
ABC dry powder fire extinguishers are inspected once a year. Because the ABC powder containing about 45% ammonium phosphate salt, easy to agglomerate, afraid of emergencies spray does not come out, there is, because the environment is not good, if there is a danger of explosion, and responsibility is great.Local standards have half a year's national standard, 2 yearsGB is generally the most loose, according to local standards, fire out, things are important, no one dared to relax requirements
For a long time will cause a fire extinguisher and fire extinguishing powder in the agglomerate, result can not be completely injection or not spray, so fire extinguisher expired will be sent to the maintenance of fire extinguishers qualification of enterprises for inflatable powder, dry powder fire extinguisher use for a long time will cause the pressure in the fire extinguisher fire extinguishers can lead to decreased injection, so the fire extinguisher pressure is insufficient to qualified maintenance of fire extinguishers for charging processing enterprises.
Dry powder fire extinguishers are generally divided into portable, hand push, suspension dry powder fire extinguisher. The new dry powder fire extinguisher is usually valid for five years. The dry powder extinguisher for re aeration is usually valid for one year, at most for two years.
