History tends to repeat itself when it comes to the selection of cryogenic isolation valves for cryogenic applications, which can result in outdated choices and inappropriate valve usage. Bestobell Valves’ Technical Director Kevin Fretwell looks at the key factors in choosing the right valve for the job.

Too often cryogenic valve selection is based on history – it worked reasonably well last time so let’s use it again – but technical advances mean historical decisions may no longer be best.

There are three alternative types of cryogenic isolation valves suitable for cryogenic service - globe valves, gate valves and ball valves. Each has its own particular set of characteristics that must be evaluated in the context of key criteria such as safety, efficiency, reliability and cost. The purpose of this website is to give guidance as to when it is appropriate to use the different types of cryogenic isolation valve.