Design of safety valves for tanks in gas handling units
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For the safety valves on the vapor handling equipment I’ve worked with – such as reflux pipes, liquid storage tanks, and the tops of various towers – a bypass valve is always installed. Is it used to regulate the pressure of the safety valve, or does it serve some other purpose? Are the safety valves of other devices designed in the same way?
That is the safety valve bypass wire; when the safety valve is taken out for testing, this bypass wire allows pressure to be released, thus not affecting production
In other words, it’s not turned on when in normal use? Furthermore, the safety valve has a maximum pressure limit; when designing the valve (for example, in terms of the pressure resistance of the explosion-proof diaphragm), does one not need to take cross-line conditions into account?