Positive arch type rupture disc is one of the more widely used types in the industrial field. This kind of rupture disc has an arched structure, and the concave surface is inside the pressure system. When the system pressure reaches a predetermined value, the rupture disc breaks under the action of tensile stress. Depending on whether it is equipped with auxiliary devices such as a tool holder, the positive arch type rupture disc can be subdivided. The advantage of the positive arch rupture disc is that there are fewer fragments during blasting, which can effectively avoid clogging the discharge channel. It is suitable for working conditions where the purity of the medium is required and the pressure rise speed is relatively gentle, such as general storage tanks and reactor overpressure protection. However, in the environment of high-frequency pressure fluctuations, ordinary positive arch rupture disc may fail early due to fatigue.
There are some differences in the structural principles of the reverse arch type rupture disc and the positive arch type. The convex surface of the reverse arch type rupture disc faces the inside of the pressure system. Under the action of pressure, the rupture disc first becomes unstable and reverses, and then it is cut by the tool or breaks on its own. This kind of rupture disc has excellent fatigue resistance and can withstand frequent pressure fluctuations, especially suitable for compressors, pump outlets and other occasions where pressure changes are more severe. In addition, the anti-arch rupture disc has high burst pressure accuracy and rapid action, which can complete the pressure relief action in a very short period of time, reducing the risk of equipment damage due to overpressure.
The structure of the flat-plate rupture disc is relatively simple, and it is usually made of a thin metal sheet with good plasticity. When the system pressure exceeds the carrying capacity of the rupture disc, the rupture disc tears along the weak links to relieve pressure. The cost of flat-plate rupture disc is relatively low, and it is suitable for some occasions where cost is sensitive, pressure is low, and blasting accuracy is not required, such as the safety protection of small low-pressure containers. However, due to the large amount of debris generated during the blasting of the flat-plate rupture disc, there are certain limitations in its use in working conditions that require high media cleanliness.
Graphite type rupture disc is a special type designed for highly corrosive media. Graphite material has good chemical stability and can resist the erosion of a variety of strong acids and alkalis. It is often used for overpressure protection of equipment for storing or handling corrosive media in the chemical industry. However, the graphite material is relatively brittle, and finer operations are required during installation and use to prevent accidental damage caused by external forces.
Facing the complex and diverse types of rupture disc in the market, companies often face problems such as difficult selection and poor matching when purchasing. And we have researched and manufactured rupture disc for many years, relying on a professional technical team and rich industry experience, we can provide customers with comprehensive selection support. Our products cover a full range of rupture discs such as positive arch type, reverse arch type, flat type and graphite type, and each product has undergone strict quality control. From raw material procurement to manufacturing, to finished product testing, all comply with international advanced standards and process specifications.
We understand that the performance requirements of rupture disc vary greatly from industry to industry and under different operating conditions. Whether it is a fine chemical reaction device that requires high-precision burst pressure or a chlor-alkali production equipment that requires strong corrosion resistance, we can provide customized solutions according to the specific needs of our customers. If you need to purchase rupture disc now, please choose us, we believe it will satisfy you!
