A fire extinguisher consists of a cylinder, head, nozzle, and other components. With the help of driving pressure, the filled fire extinguishing agent is sprayed out to achieve the purpose of extinguishing the fire. According to regulations, fire extinguishers should be regularly repaired and have a certain service life, and should be scrapped after the service life.

以下几点可以帮助您确定何时应报废灭火器：

The following points can help you determine when to dispose of fire extinguishers:

堵塞消防通道会有什么隐患

What are the safety hazards of blocking fire exits

1.灭火器和气瓶的外观和螺纹部位严重腐蚀，从而影响强度和性。

1. The appearance and threaded parts of fire extinguishers and gas cylinders are severely corroded, which affects their strength and safety.

2.气缸由于使用不当而严重变形（例如剧烈颠簸）。

2. The cylinder is severely deformed due to improper use (such as severe turbulence).

3.液压试验后有渗漏（不允许补焊）。

3. There is leakage after hydraulic test (repair welding is not allowed).

4.液压试验后，气缸变形率等于或大于6％。

4. After the hydraulic test, the cylinder deformation rate is equal to or greater than 6%.

5.内部带扣头没有（或未安装）排气螺钉和固定螺钉。

5. The internal buckle head does not have (or is not installed) exhaust screws and fixing screws.

6.结构不合理（如筒体平底，储气瓶外置而进气管从筒体进入筒身内部的干粉灭火器）。

6. Unreasonable structure (such as a dry powder fire extinguisher with a flat bottom cylinder and an external gas storage cylinder while the intake pipe enters the interior of the cylinder).

7.没有生产许可证的制造商生产的，没有制造商的名称和工厂的年份和月份。

7. Manufactures without a production license, without the name of the manufacturer and the year and month of the factory.

8.对于带手动阀的二氧化碳灭火器，需要更换压把式阀门。

For carbon dioxide fire extinguishers with manual valves, it is necessary to replace the pressure handle valve.

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