Burst discs, as the ultimate pressure relief device for overpressure protection in pressure equipment, have been widely used in industries such as chemical, petroleum, metallurgy, fire protection, and aviation. However, during the actual selection process, different types of burst discs show significant differences in structural form, burst pressure, temperature range, and corrosion resistance. Faced with various structural types such as domed, reverse domed, flat, and graphite, many technicians often encounter confusion in making a choice. So, let's take a look at them together below.
Two common types of rupture discs.
Below is an introduction to the two common types of rupture discs on the market:
1. Positive Arch Rupture Disc.
Its characteristics include weak fatigue resistance and limited back pressure capacity, making it more suitable for scenarios with stable pressure, clean media, and simple working conditions. Examples include ordinary pressure vessels (storage tanks, buffer tanks) and low-pressure pipelines (residential water supply pipes, ventilation systems), with a pressure range typically between 0.1~1.6 MPa.
Practical applications include pressure tanks for secondary water supply in residential areas, atmospheric storage tanks in food processing, boiler steam pipelines, purified water storage systems in the pharmaceutical industry, and ordinary chemical raw material storage tanks. Due to its simple structure and low manufacturing cost, it is suitable for civilian or low-risk industrial fields where cost control is strict.
2. Reverse Buckle Rupture Disc.
Due to its strong fatigue resistance, high back pressure capacity, and wider adaptability, it is more suitable for high-pressure, complex working conditions, and harsh medium scenarios. For example, in high-pressure or ultra-high-pressure systems, it can withstand higher working pressures (usually above 1.6 MPa, even ultra-high pressure), such as high-pressure oil and gas pipelines, chemical synthesis reactors, etc.
Actual applicable scenarios include resid oil pipelines in petroleum refining, acid waste storage tanks in the electroplating industry, or chemical exhaust gas recovery pipelines with relatively high back pressure (back pressure may reach over 50% of the working pressure), steam systems with condensers, as well as sterile reactors in pharmaceutical production, and urban high-pressure natural gas main networks, among others.
Through the above technical comparison of domed and reverse buckled rupture discs, from the safety perspective of heavy industry enterprises, the advantages of Reverse Buckle Rupture Discs are: higher burst pressure accuracy (±3% to ±5%), longer fatigue life, and no debris generated after bursting, reducing the risk of overpressure accidents, making it a better choice.
Six core advantages of professional manufacturers.
Shenyang Xinguang Aerospace Safety Systems Co., Ltd. is the first professional manufacturer established after the founding of the People's Republic of China, specializing in the integrated design, manufacturing, sales, and service of burst disc safety devices.
The company was founded in 1959 within the cradle of China's aerospace power systems — the Xinguang Aerospace Group.
In 1986, it received the "Burst Disc Device Manufacturing License" issued by the Ministry of Labor.
In 2000, the company was recognized by the Provincial Department of Science and Technology as a high-tech enterprise.
With strong technical expertise, a strict quality assurance system, and the most advanced equipment, the company has grown into a well-known brand in the field of safety systems. Compared with other companies, we have:
1. Advanced professional technology.
The company has accumulated 40 national patents covering multiple technical areas including burst disc structural design, manufacturing processes, testing methods, and supporting devices. Relying on a technology system with independent intellectual property rights, we can provide various technical solutions and product selection support for overpressure protection needs across different industries.
2. International authoritative certification.
Our products have passed certification by internationally authoritative institutions and comply with ASME, CE, ISO, and other international standards as well as the regulatory requirements of target markets. Whether for domestic engineering projects or overseas export orders, we can provide complete compliance documentation to ensure unobstructed global circulation and application of the products.
3. Customized solutions.
For different media properties (corrosiveness, viscosity, etc.), working conditions (pressure, temperature, etc.), and installation conditions (diameter, connection methods, etc.), the company can offer fully customized burst disc solutions. From material selection (stainless steel, Hastelloy, titanium, graphite, etc.) to structural forms (concave, convex, graphite, etc.), everything can be tailored to meet the specific needs of customers.
4. Continuous R&D investment.
The company has established a professional R&D team and testing platform, continuously investing resources to develop applications for new materials and new processes. By introducing high-performance alloys, composite coatings, and precision machining technologies, we continuously improve burst disc bursting pressure accuracy, fatigue resistance, temperature and corrosion tolerance, and long-term stability.
5. Innovative corporate culture.
Internally, the company has established incentive mechanisms to encourage engineering and technical personnel to break traditional thinking and explore new production technologies and advanced management methods. Innovation continues in structural optimization, process improvement, quality control, and intelligent production.
6. Full-process service assurance.
We provide lifecycle services from early-stage technical consultation, on-site condition surveys, product selection and calculation, to mid-stage production delivery and installation guidance, and late-stage usage tracking and maintenance replacement. This ensures that customers receive professional, timely, and effective technical support and service response at every stage.
Choosing a burst disk is not just choosing a component, but also choosing long-term security. Shenyang Xinguang Aerospace Safety Systems Co., Ltd. has undergone rigorous verification in every stage of burst disk development. Supported by 40 patented technologies, backed by international certification, with full-process customized services... If you want to learn about various types of burst disks, welcome to contact us.
