Pressure Equipment: Cryogenic pressure vessels

Pressure vessels are designed to contain a cryogenic fluid on which venting, insulation, refrigeration or a combination of these is used in order to maintain the operating pressure within the design pressure and the contents in a liquid phase.
The use of the cryogenic vessel ensures an efficient storage and transportation of cryogenic substances, which represents an advantage in terms of storage space (as liquefied gasses occupy less space) and safety in handling these materials.

Different types of cryogenic vessels, while a common configuration includes double-walled cylindrical tanks where inner tanks are made of stainless steel and outer tanks made of carbon steel, filled with an insulation material. High-vacuum configurations are put in place to minimize heat losses.