At what PSI do safety burst discs rupture?

At what PSI do safety burst discs rupture?

• A. 2000-2400 psi
• B. 2650-3000 psi
• C. 1200-1500 psi
• D. 3500-4000 psi

Answer: (B)

Safety burst discs are designed to vent a system at a specific overpressure to prevent damage from a pressure spike. The chosen burst pressure needs to be higher than normal operation and everyday transients, but low enough to protect components before they fail. A rupture pressure in the range of approximately 2650–3000 psi fits that balance for many high‑pressure ship systems: it stays intact during normal use and typical surges, yet will release pressure before pressures rise to levels that could cause serious damage. Once the disc ruptures, the pressure drops and the disc must be replaced to restore the protective function. Other ranges would either vent too soon, reducing performance, or too late, risking equipment failure.

Safety burst discs are designed to vent a system at a specific overpressure to prevent damage from a pressure spike. The chosen burst pressure needs to be higher than normal operation and everyday transients, but low enough to protect components before they fail. A rupture pressure in the range of approximately 2650–3000 psi fits that balance for many high‑pressure ship systems: it stays intact during normal use and typical surges, yet will release pressure before pressures rise to levels that could cause serious damage. Once the disc ruptures, the pressure drops and the disc must be replaced to restore the protective function. Other ranges would either vent too soon, reducing performance, or too late, risking equipment failure.