Positive arch ordinary type rupture discs are widely used in industrial pressure systems such as petroleum and natural gas, energy, power, metallurgy, and pharmaceuticals, serving as safety devices to prevent equipment or pipelines from overpressure. These rupture discs are not universal products; different equipment, operating conditions, and industries have varying requirements for burst pressure, temperature resistance, and material properties. Therefore, in practical applications, it is necessary to select rupture discs scientifically and systematically based on the specific operating conditions and application fields. The following outlines the main steps for selecting rupture discs.

1.Identify the basic parameters of the equipment and system:
The first step in selecting rupture discs is to understand the basic characteristics of the equipment to be protected, including the design pressure of the pressure vessel or pipeline, normal operating pressure, and maximum allowable pressure. These parameters help determine the burst pressure rating of the positive arch ordinary type rupture discs, ensuring that the discs operate appropriately under different conditions and safeguard both the equipment and personnel.
2.Determine the properties of the medium:
The material of the positive arch ordinary type rupture discs is selected based on the characteristics of the medium. It is essential to identify whether the system medium is a gas or a liquid, and whether it is corrosive, toxic, or flammable/explosive. This ensures that the rupture discs maintain structural integrity and accurate burst pressure during operation.
3.Confirm the operating temperature range:
The burst pressure of positive arch ordinary type rupture discs can shift with temperature changes. Therefore, discs should be selected according to the actual operating temperature of the system. Excessively high temperatures may reduce the material strength, causing premature rupture, while excessively low temperatures may make the material brittle, preventing proper rupture at the set pressure or causing incomplete rupture, which would compromise overpressure protection.
4.Select the appropriate rupture disc structure:
Based on the operating conditions, one can choose a positive arch, reverse dome, or other special structural forms. Different structures vary in pressure resistance and ability to accommodate pressure fluctuations. Selecting the appropriate structure improves the stability and service life of the Positive arch ordinary type rupture discs.
5.Ensure compliance with relevant standards and regulations:
The selection of Positive arch ordinary type rupture discs must comply with applicable industry standards and regulatory requirements to ensure the safe operation of the equipment.

With over sixty years of technical experience and strict quality management, Shenyang Xinguang Aerospace Safety System Co., Ltd. offers a comprehensive range of reliable positive arch ordinary type rupture discs and safety devices, widely used in industries such as petrochemicals, pharmaceuticals, metallurgy, power generation, environmental protection, and cryogenic technology. The company holds more than 30 independent intellectual property rights, has participated in the formulation of multiple national and industry standards, and has obtained European CE certification and ASME UD certification, ensuring that every product meets the highest safety standards.
With advanced design capabilities, rigorous material control, and extensive manufacturing experience, Shenyang Xinguang has become a well-known brand in the domestic rupture disc industry. We look forward to collaborating with both new and existing partners to create a safe and efficient future together.










