After each use, the fire extinguisher must be sent to the maintenance organization that has obtained the maintenance license (hereinafter referred to as the maintenance organization) for inspection, the damaged parts are replaced, and the fire extinguishing agent and driving gas are refilled.
Whether the fire extinguisher has been used or not, it must be sent to the maintenance organization for a hydraulic test inspection when the specified time limit has expired since the year and month of the factory.
Portable and cart type fire extinguishers, portable and cart type dry powder fire extinguishers. And the portable and cart-type carbon dioxide fire extinguishers have expired for five years, and then every two years, inspections such as hydraulic test must be carried out.
Portable and cart-type mechanical foam fire extinguishers, and portable clean water fire extinguishers have expired for three years. After that, a hydraulic test must be carried out every two years.
Portable and cart-type chemical foam fire extinguishers, and portable acid-base fire extinguishers have expired for two years. After that, a hydraulic test must be carried out every other year.
If the condition is found in the visual inspection, it must be treated as a waste product.
Inspection of main components
Pressure indicator inspection: a pressure indicator should be installed, and the surface of the pressure indicator of the dry powder fire extinguisher should be marked with "F". Whether the pointer of the pressure indicator is in the green area.
Inspection of spray hose
Any fire extinguisher with a fire extinguishing dose greater than 3Kg (L) should be equipped with a spray hose. The length of the spray hose should reach 400mm. The length of the spray hose does not include the joints or nozzles at both ends of the spray hose.
Inspection by insurance agency
Fire extinguishers should be equipped with safety devices. This kind of safety device can be a safety pin or other structures with the same function. There should be a lead seal or plastic tape seal on the insurance pin. The lead seal or plastic tape seal is for one-time use. If the lead seal or plastic tape seal on the insurance pin falls off or breaks, it indicates that the fire extinguisher has been used.
Labels are also called decals, and are generally affixed to the surface of the cylinder with printed stickers. The inspection of the label mainly checks whether the content of the label is correct and complete. The inspection content of the logo should include the name of the fire extinguisher, the model, the fire extinguishing level, the operating temperature range, the number and name of the driving gas, the name of the manufacturer, and the method of using the fire extinguisher.
The mark on the fire extinguisher: MF (L) 8 is expressed as: fire extinguisher, dry powder fire extinguishing agent, characteristic code of dry powder fire extinguishing agent (L means ammonium phosphate dry powder fire extinguishing agent), and the weight of the filled dry powder fire extinguishing agent is 8kg.
Check whether the cylinder has a permanent mark
The markings are generally steel stamps, and the content of the stamps has two, the date of manufacture, the hydraulic test pressure of the fire extinguisher, and the manufacturer's serial number. The steel stamp is generally stamped on the outer surface of the upper neck ring of the fire extinguisher cylinder or on the outside of the bottom ring that is not compressed at the lower part of the cylinder.
The barrel of the fire extinguisher is severely rusted (the paint is peeled off in a large area, and the rusted area is greater than or equal to 1/3 of the area of the barrel) or the barrel of the connection part is severely rusted. The internal buckle head has no or no air screw or fixing screw installed or unloaded. The fire extinguisher with a fire extinguishing dose greater than or equal to 4Kg is not equipped with an intermittent spray mechanism. The barrel of the fire extinguisher is severely deformed. There is no manufacturer's name and year of manufacture. The fire extinguisher must be scrapped if it reaches the following years from the date of manufacture: 8 years for the portable dry powder fire extinguisher.
Zhejiang Winner Fire Fighting Equipment Co., Ltd. was founded in 1994, has more than 1,000 sets of production and testing equipment. As a famous China Fire Extinguisher Manufacturers and Fire Extinguisher factory, the company is engaged in research, development, manufacture and sales of fire-fighting equipment and security equipment, and built a fire-fighting test room of the National Fire-fighting Inspection Center. It is one of the largest manufacturers in China to obtain product certification. The products include: Carbon dioxide fire extinguisher, dry powder fire extinguisher, water-based fire extinguisher, seamless steel cylinder, seamless aluminum alloy cylinder, high pressure cylinder for the on-board storage of compressed natural gas(CNG), cylinder valve, extinguisher valve, wholesale Fire Extinguisher and so on. With the enterprise principle "create value for customers to gain its own development and interests", Winner Fire is struggling all the way to become a standardized, internationalized and lasting enterprise.