Attention storage of Dewar flasks

Compared with steel cylinder gas supply, Dewar gas supply has the advantages of large storage capacity, high gas purity, convenient transportation, high safety, and economical benefits. Therefore, it is very common for customers to use Dewar flasks. Here is an introduction to the matters needing attention during the use of the Dewar, so that users who are new to the gas cylinder can understand and master it.
　　
1. The minimum temperature of the gas (liquid nitrogen, liquid oxygen, liquid argon or liquid carbon dioxide) contained in the Dewar can be minus 196 degrees. Therefore, avoid direct contact of the skin with liquid gas during the use of pressure vessels to prevent frostbite.
　　
2. When the pressure of the gas in the Dewar is too high, it will release the pressure and discharge the gas. Therefore, it is necessary to keep the storage area ventilated to avoid suffocation caused by the high concentration of the gas discharged from the pressure vessel. 3. The Dewar flask should be placed upright during use and transportation to avoid tilting. Prevent liquid from being discharged from the safety valve, causing frostbite and damage to the Dewar.

4. In the process of using the gas cylinder, the force should not be excessive when opening and closing the valve. When valves and pipes freeze due to the large amount of gas used, they must be drenched with water before being broken, and pressure vessels must not be violently broken.