What is Bursting Discs for Nuclear Power?

2025-09-04

Bursting discs for nuclear power is a non-closed overpressure safety protection device specially designed for nuclear power plants and nuclear-related facilities. It prevents equipment from exploding and leaking due to overpressure by breaking and relieving pressure instantly when the system pressure exceeds a set threshold value. It is an important part of the nuclear safety barrier. Compared with conventional industrial rupture discs, bursting discs for nuclear power can meet higher safety standards, stricter performance requirements and more complex operating conditions adaptability, and play an important role in ensuring the safe operation of nuclear reactors, nuclear fuel cycle systems, radioactive material storage equipment and other facilities.


The core function of bursting discs for nuclear power is to release the medium quickly and reliably under overpressure conditions, and to control the system pressure within a safe range. As a nuclear safety-level equipment, bursting discs for nuclear power has very high operating reliability, and the deviation between the actual burst pressure and the design value is also controlled to a very small range, which can not fail or malfunction under extreme operating conditions. And because it is in a radiation environment for a long time, the materials used to manufacture bursting discs for nuclear power have good anti-radiation aging ability to prevent material performance degradation due to radiation and affect the stability of burst pressure. For radioactive media, the sealing performance of bursting discs for nuclear power meets strict requirements, and zero leakage can be achieved during normal operation to prevent the spread of radioactive materials from polluting the environment.


Bursting discs for nuclear power


Bursting discs for nuclear power Media characteristics required in different application scenarios:

1. Reactor cooling system: in a high-temperature and high-pressure aqueous medium environment, the rupture disc needs to withstand a temperature above 300℃ and a pressure above 15Mpa to prevent overpressure of the coolant circuit from damaging the reactor pressure vessel.

2. Radioactive waste treatment system: for environments containing corrosive radioactive waste liquids and gases, rupture discs need to be made of corrosion-resistant materials such as hastelloy and titanium alloys, and at the same time have anti-radiation aging properties.

3. Containment shell isolation system: as the last line of defense for the overpressure protection of the containment shell, the rupture disc needs to act quickly in extreme accidents such as the melting of the core and the sudden increase in the internal pressure of the containment shell to reduce the risk of radioactive material leakage.

4. Auxiliary system protection: in auxiliary equipment such as steam generators, voltage regulators, and condensers, rupture discs are used to prevent local overpressure and ensure the normal operation of the equipment.


In short, bursting discs for nuclear power is an important component of overpressure protection for nuclear facilities, providing protection for equipment in key scenarios such as reactor systems and radioactive treatment systems. If you are purchasing similar products, you can enter our homepage, I believe our products will satisfy you!

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