Seeking help with calculating the diameter of a safety valve
Thread Content
In the new standard NB/T 47012-2020 for pressure vessels used in refrigeration equipment, shell-and-tube condensers shall be equipped with safety valves. However, no calculations related to the diameter of the safety valve were found. I would like to ask the experts: how should the diameter of a safety valve be determined? Should it be based on the old standard NB/T47012-2010, or should other standards be taken as reference? Thank you very much.
The old standard includes calculations related to caliber, while the new standard doesn’t address this much; it was thought to be useful as a basis for making choices
Is it still okay to use the previous calculations?