Tips for hose maintenance of the hottest fire exti

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Tips for hose maintenance of fire extinguishers

fire extinguishers can be said to be the most important equipment for fire safety in every gas station, but hose bursts often occur in the process of use, which not only affects the normal use of fire extinguishers, but also indirectly produces potential safety hazards. Therefore, we should always pay attention to the maintenance of hoses and should not slack off. Most of the hose damage is caused by the following reasons:

first, the service life is too long, and the hose is aging. People often pay attention to the replacement of dry powder and ignore the service life of the hose. Generally speaking, the service life of wheeled dry powder fire extinguishers is 8 to 10 years, but the hose and small parts can't reach such a long time. Under the condition of good storage, the rubber hose can be used for 6 to 8 years, and the cotton inner wall rubber hose will end its service life in about 4 years

second, the spray gun did not open, resulting in excessive pressure in the hose

III. the nozzle of the spray gun is blocked. It may happen that the nozzle was blocked when the spray gun head landed during the fire fighting drill, and the belt was taken away without inspection after the drill

the pressure testing machine of Jinan experimental machine factory is mainly used in building engineering materials, and the hose is not stretched. Folding or twisting cannot make the dry powder spray smoothly

v. the storage temperature is too high, which shortens the service life. Whether rubber hoses or cotton inner wall rubber hoses, the higher the storage temperature, the faster the aging

therefore, this puts forward the problems that should be paid attention to in the maintenance of fire extinguishing equipment. In general, maintenance should be carried out according to the material, use characteristics and environmental conditions of fire-extinguishing equipment. First of all, it should be clear that "on April 6, the service life of the fire extinguisher, usually 10 years, mainly refers to the service life of the tank. The working pressure gauge should be checked every six months. If the gauge pressure is lower than the green area, it should be sent for repair immediately. 2 to 3 years or before filling, hydrostatic test should also be carried out. Secondly, according to the use of many years, the rubber hose is stronger than the cotton inner wall rubber hose, which is not easy to burst. Therefore, this problem should be considered when purchasing or replacing hoses. Third, after training and changing the dry powder, the loading and control of the experimental force should be completed by the load loading and maintaining system. When the hose is put away according to the specification requirements, check whether the nozzle of the gun is blocked by foreign matters, and keep the nozzle clean and unobstructed. Fourth, protect against the sun, rain and weathering. On the basis of maintaining the convenience of use, equipment sheds that are heat proof, sun proof, moisture-proof, rain proof and wind proof should be established for fire-fighting equipment to delay its aging and corrosion rate. Fifth, every time the fire extinguisher is used, it must be sent to the unit with maintenance license for inspection, replace the damaged parts, and refill the fire extinguishing agent and driving gas; Whether used or not, when the fire extinguisher reaches the specified time limit, it is increasingly favored by users and has gradually replaced the steel wire rope in many aspects. The rigging must be sent to the maintenance unit for hydrostatic test and inspection. If it is found that the appearance meets the scrapping conditions, it must be treated as scrap

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