What aspects need to be checked regularly by dry powder chemical extinguisher

During professional inspection, first of all, the appearance inspection is required. The main task of this link is to carefully observe the shell of the fire extinguisher and confirm whether it is intact. Special attention should be paid to the existence of cracks, deformation, rust or other damage. The integrity of the shell is directly related to the sealing performance and structural safety of the fire extinguisher. Any damage may lead to pressure or leakage of fire extinguishing agent, seriously affecting the fire extinguishing effect. In addition, the outer surface of the fire extinguisher should be kept clean without obvious dirt, oil or corrosion. This will not only help to discover potential problems in a timely manner, but also enhance the overall image and confidence in using the equipment.

The inspection of the pressure gauge is also crucial. It is necessary to confirm whether the pointer of the pressure gauge is within the normal range. If the pointer deviates from the normal range, it may mean that the pressure is too low or too high, which will affect the injection distance and efficiency of the fire extinguishing agent. Low pressure is usually caused by leaks in the equipment or long-term unused, while excessive pressure can pose a safety hazard. Therefore, timely adjustment or repair is essential. At the same time, the pressure gauge must be kept clear and readable to avoid the operator's inability to accurately grasp the equipment status due to damage or blur.

The inspection of nozzles and nozzles is also an important part that cannot be ignored. It should be ensured that the nozzle and nozzle are not blocked, deformed or damaged, and the unobstructed nozzle directly affects the spraying effect of the fire extinguishing agent. If the nozzle is found to be blocked, it should be cleaned or replaced immediately to avoid delaying the fire extinguishing time due to poor spraying at the fire site.

The storage status of fire extinguishing agents also needs to be paid attention to. It is necessary to check whether there are clumps, moisture or impurities inside the fire extinguisher. The dry powder should be kept dry and uniform to avoid clumping due to moisture absorption, affecting the smoothness of the jet. If dry powder is found to be clumped or discolored, it may indicate that the equipment is damp or contaminated, and professional testing is required and replacement is required.

The integrity of the seal ring and valve is also the key to the inspection. The sealing ring should be free of cracks, deformation or aging to ensure the sealing of the pressure vessel and prevent leakage. The valve should be opened and closed flexibly and freely without jamming or air leakage to ensure smooth operation in an emergency. In addition, the operating handle of the valve should be kept intact to ensure smooth operation and avoid use due to mechanical failures.