In industrial fields such as petrochemicals, power generation, metallurgy, new energy, and fine chemicals, high-temperature and high-pressure operating conditions are common. During the long-term operation of pressure-bearing equipment such as reactors, pressure vessels, pipelines, or storage tanks, any abnormal rise in pressure can cause the medium to leak from flanges, sealing surfaces, or welds, potentially resulting in structural damage, and in severe cases, explosions, production shutdowns, and safety incidents. As a passive safety protection device, pressure burst discs ensure the safe operation of high-temperature and high-pressure systems, establishing a reliable and fast-responding overpressure protection mechanism.
A pressure burst disc is a safety component that ruptures instantly when the preset pressure is reached, releasing excessive pressure in the system within a short period. This effectively protects pressure vessels, pipelines, and associated equipment. Compared with other safety devices, pressure burst discs have a simple structure and respond quickly, without relying on external power or control systems, making them particularly suitable for applications that require high reliability and rapid pressure relief under high-temperature and high-pressure conditions.

In high-temperature and high-pressure systems, the medium inside the system is often at elevated temperatures and experiences frequent pressure fluctuations. This increases the load on equipment and raises the risk of deformation and damage. Pressure burst discs typically adopt a domed structure, which allows system pressure to be evenly distributed across the entire disk surface, preventing excessive local stress and maintaining stability without deformation during long-term operation. The discs are tightly connected to flanges or clamping devices, providing excellent sealing performance and effectively preventing medium leakage under normal pressure.
Pressure burst discs are usually made of high-strength metals with good high-temperature and corrosion resistance, ensuring stable performance under prolonged high-temperature and high-pressure conditions. When the system experiences abnormal conditions and the pressure rapidly exceeds the set value, the disc ruptures instantly at its pre-designed weak points, allowing the pressure burst disc to actuate quickly and release pressure in time, preventing damage caused by sustained overpressure.
In practical engineering applications, pressure burst discs are often installed at overpressure risk points, such as equipment inlets and outlets, pressure-concentrated areas, or critical control nodes. They can also be used in combination with safety valves and other protective devices to enhance overall safety. When abnormal conditions occur, the pressure burst disc responds rapidly, significantly improving the safety and reliability of the system.

Shenyang Xinguang Aerospace Safety System Co., Ltd. is a professional manufacturer of pressure burst disc safety devices, with an aerospace manufacturing background and advanced intelligent equipment. The pressure burst discs produced by the company have a longer service life under high-temperature, high-pressure, and special operating conditions. With a modern production system, precise machining capabilities, and an experienced technical team, the company maintains a leading position in the field of industrial safety.
We are committed to providing high-quality and reliable safety protection solutions to customers both domestically and internationally. If you are interested in procuring pressure burst disc products, please feel free to contact us at sales@syxghy-ss.com.










