How long is the service life of Dewar

The service life of the Dewar is 5-10 years. During the use process, if there is any damage or abnormality in the gas cylinder, it should be inspected in time. Under normal circumstances, the Dewar needs to be inspected once every 3 years. The bottles need to be inspected once every 2 years. If the service life of the pressure vessel exceeds 10 years, it should be inspected once a year.

Principle of Dewar
Dewar is a stainless steel pressure vessel with super vacuum insulation. It is a gas cylinder designed for storage, transportation and use of liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide. It is used for reliable and economical transportation and storage of low-temperature liquid gas, and Store and supply liquid gas on-site in a wide range of applications.

What are the components of the Dewar
1. Outer barrel: protect the inner barrel.

2. Inner cylinder: Reserve cryogenic liquid.

3. Vaporizer: The liquid gas in the bottle is converted into gaseous state. 4. Liquid filling or discharging of liquid in liquid valve.

5. Safety valve: Automatic pressure relief.

6. Discharge valve: Discharge the gas in the bottle to reduce the pressure in the bottle.

7. Excitation meter: Indicate the pressure of the inner cylinder of the bottle.

8. Booster valve: to make the low-temperature liquid in the driving bottle flow.

9. Use valve: Control gas flow rate.

10. Liquid level gauge: indicates the level of the liquid level in the container.