FAQ

What sort of things should I watch for in choosing valves for cryogenic conditions?

Answer:

First of all, it's important that you pick a reliable valve. You're going to have to continue being able to operate it in cryogenic conditions, and it cannot freeze stuck. When you're doing your calculations, keep in mind that you are dealing with gases in fluid condition - pay particular attention to whether you are calculating with "normal condition" data or with "working condition" data. The type of isolation needed is based on the permitted amount of leak-in of heat. Whether vacuum isolation is going to be used or not should also be decided on during the process of choosing a valve.

- Sender: A.L.

How do I know if I have picked the right control valve?

Answer:

You can't be 100% sure until you have installed it. There is no such thing as a bad control valve. What is important is who is advising you on it and that you provide this person with the right information about the conditions you need it for. When you provide the correct working conditions and technical specifications, an experienced adviser will offer you the right control valve for you. Pay attention that your adviser has a number of different types of valves to choose from; too small a range can lead to offering a non-standard or too expensive control valve. If you don't have the standard specification form for control valve orders, click here to download it.

- Sender: Eng. B.

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