To Know your Dewar is to Love your Dewar

Many people use the word “dewar” to describe a “liquid cylinder”, and vice versa. There are some key differences.

What is a Liquid Cylinder?

Liquid cylinders are pressurized containers specifically designed for cryogenic liquids. Liquid cylinders let you withdraw liquid and/or gas.

A liquid cylinder has valves for filling and dispensing the cryogenic liquid, and a pressure-control valve with a brittle rupture-disk as backup protection.


 

What is a Dewar?

Dewars are non-pressurized vessels, like a Thermos Bottle. They typically have a loose fitting cap or plug that prevents air and moisture from entering, yet allows excess pressure to vent.

Laboratory dewars have wide-mouthed openings and do not have lids or covers. Laboratories primarily use these small containers for temporary storage.


 

If you are interested in the Liquid Nitrogen Dewar, Dewar Flask, Liquid Nitrogen Storage Dewar or need to consult, please click on our online customer service.Welcome sending your inquiry.

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