Bursting / Rupture Disc

Key Details

• Over pressure protection: If the internal pressure of the tank rises suddenly due to a chemical reaction, heating of the cargo, or an operating error, the bursting disc will rupture. This releases the excess pressure instantly and prevents catastrophic tank failure.
• Response speed: Unlike pressure relief valves, which take time to open and reset, a rupture disc provides a near-instantaneous response. This rapid-response capability is critical for guarding against sudden and powerful pressure spikes.
• Vacuum relief: Some bursting discs are designed to be double-acting, meaning they can protect against both over pressure and excessive vacuum. This prevents the tank shell from being damaged by implosion if a vacuum develops internally.
• Primary or secondary relief: Bursting discs are used either as a standalone emergency pressure relief system or as a backup to a pressure relief valve. When used in series with a pressure relief valve, the bursting disc is often placed upstream to provide a leak-tight seal and protect the valve from corrosive media

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