Fire extinguishing agent manufacturers stated that portable dry powder fire extinguishers are mainly used to extinguish solid material fires, combustible liquid fires, combustible gas fires and general electrical fires. Fire extinguishers are used in all corners of society because of their flexible operation and wide range of applications. The method of operation: first pull out the safety pin, pull out the nozzle, and then aim at the flame root and shoot left and right. It is suitable for early fire fighting.
When using a dry powder fire extinguisher to extinguish a scattered liquid fire, the side of the flame should be viewed. Aim at the root of the flame, and shoot from near to far, left and right, and quickly advance until the flame is completely extinguished. When using a dry powder fire extinguisher to extinguish a flammable liquid fire in the container, you should also aim at the root of the flame from the side of the flame, and shoot left and right. When the flame is driven out of the container, move forward quickly to put out the remaining fire. When extinguishing a fire, be careful not to aim the nozzle directly at the liquid surface to prevent the impact of the dry powder airflow from splashing the oil, causing the fire to expand and making it difficult to extinguish the fire.
Dry powder fire extinguishers should undergo a visual inspection every month, mainly checking the pressure gauge of the fire extinguisher. When the pointer of the pressure gauge is lower than the green line area, it should be charged and repaired immediately; the tank body of the newly purchased ABC dry powder fire extinguisher should be tested by water pressure for 5 years After the test, the hydraulic pressure test will be performed once every two years thereafter, and the mandatory period for the tank body to be scrapped is 10 years.
Dry powder fire extinguishers should check the pressure gauge regularly. When the pointer of the pressure gauge is lower than the green line area, it should be charged and repaired immediately. Generally, the validity period of the fire extinguisher bottle pressure is 1.5 to 2 years, and it should be charged or replaced regularly. The fire extinguisher should be placed in a clean and dry place. Exposure to the sun and close to the fire source are strictly prohibited; it should be kept properly and it is strictly forbidden to disassemble it.
When using a dry powder fire extinguisher, you should always keep it upright during the fire extinguishing process. Do not use it horizontally or upside down, otherwise you cannot spray powder; at the same time, pay attention to the dry powder fire extinguisher to prevent re-ignition after the fire is extinguished. It is easy to re-ignite after fire extinguishing under the conditions of chemical substances. After each use of the fire extinguisher, send it to the maintenance organization that has obtained the maintenance license for inspection, replace the damaged parts, and refill the fire extinguishing agent and driving gas;
The fire extinguishing agent manufacturer stated that the fire extinguisher, whether it has been used or not, has reached the specified period since it left the factory, and it should be sent to the maintenance unit for a hydraulic test. Hand-held and trolley-type 1211 fire extinguishers, hand-held and trolley-type dry powder fire extinguishers, and hand-held and trolley-type carbon dioxide fire extinguishers must be checked by hydraulic test after one year. Portable and cart-type chemical foam fire extinguishers, and portable acid-base fire extinguishers have expired for two years, and then every other year, a hydraulic test must be carried out.