According to API520 requirements, the serial use of bursting discs and safety valves must comply with ASME VIII requirements. An overflow valve and pressure gauge must be installed between the bursting disc and safety valve to ensure the correct popping of the bursting disc.

Explosion disc in series with safety valve

Zero leakage can effectively isolate media such as toxic, harmful, or expensive media.

Reduce the material requirements for safety valves to lower their usage costs.

Extend the service life of the safety valve.