How to design and select a safety valve?
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How should safety valves be designed and selected, and what documents need to be submitted to consider the design complete? Please, an expert, explain it to me
For certification, is it for use by the user’s organization or during the equipment design phase? Certification is a separate process; the user’s organization should have no special requirements – just a sample diagram along with the relevant data is sufficient. For design selection, SW6 will do
I don’t know much about safety valves. It’s about providing them to users – they need to install a safety valve in their chlorine buffer tanks; what are the requirements, and what needs to be provided?
For the selection of safety valves, a slightly open type is generally used for liquids, while an fully open type is suitable for gases. When the medium is corrosive, it is more appropriate to use a combination of a burst disc and a safety valve! Regarding the calculation part, it is necessary to carry out calculations separately according to different process conditions; you can refer to HG-T 20570.2-95 on the installation and selection of safety valves
Check HG20570 for detailed selection calculation methods; submit the safety valve selection data sheet