Valves are used with cryogenics from production through transportation and storage which serve many industries with gases such as oxygen, nitrogen, argon and more. At extremely low temperatures of cryogenic liquids, many common materials become brittle and can crack. Many materials also shrink, causing potentially leaks at connections. Therefore, care must be taken when designing equipment and selecting materials to be used with cryogenics. Moisture must not be allowed to contaminate the valve as it will freeze and expand and cause leakage and abrasive damage to the equipment. Some of the common gases used are listed below.
