What is the purpose of connecting rupture disc safety valves in series?
Thread Content
As the title suggests, I would like to ask: if I’m worried about pressure rising too quickly, should I use a rupture disc to release pressure directly? And if I want to use a safety valve, what’s the purpose of adding a rupture disc in front of it? I don’t understand; I’d appreciate everyone’s advice
The function of protecting the safety valve. . . . .
The medium inside the pipeline is corrosive to safety valves; when the pressure is not high, it can be isolated
It is mainly used for toxic, flammable, and corrosive media; safety valves have poor sealing properties and are prone to internal leakage. If only rupture discs are used, they cannot be reused like safety valves – once a rupture disc fails, it must be replaced. Therefore, rupture discs and safety valves are used in series. Furthermore, in the case of some media that are quite viscous, it is easy for the valve core and seat of the safety valve to stick together, which affects the operating pressure; generally, two such valves are used in series.
Prevent blockage or corrosion in front of the safety valve.
1. Zero leakage 2. Prevent corrosion of the safety valve.
Agree with the opinion on floor 4! ! ! ! ! ! ! ! ! ! ! !
Our company is currently using such a design! ! ! ! ! ! ! ! ! ! ! ! !
To prevent the medium from corroding the safety valve under normal operating conditions
Prevent the medium from solidifying at the inlet of the safety valve during normal operation, thereby avoiding interference with the safety valve’s operation
The main concern is corrosion and clogging of the safety valve caused by the medium in the storage tank or discharge pipe; in this case, a burst disc can be installed in series at the inlet or outlet of the safety valve~~