What to do after entering air in liquid nitrogen tank

1. Before we use the air, we must first empty the liquid nitrogen tank.

2, repeatedly inflate the liquid nitrogen tank with liquid nitrogen 1-2 times, and flush it before discharging


 

3. After the above steps, rinse with gaseous nitrogen 1-2 times, and then discharge


 

4. After three steps, fill the liquid nitrogen tank with liquid nitrogen, and then store it normally.

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