The Dewar Flask’s distinctive double-layer vacuum structural design, which minimizes heat transfer to provide effective insulation and heat preservation, is the foundation of its operation.
Once the vacuum degree is restored to the factory value, the insulation performance of the cryogenic gas cylinder can be significantly improved.
Dewars are special vacuum insulated stainless steel pressure vessels. Designed for the storage, transportation and use of liquid oxygen, nitrogen, argon or carbon dioxide.