In the field of industrial production, bursting disc is a key component to protect the safety of pressure equipment, and its service life is directly related to the operating safety and stability of the entire system. Different types of bursting disc, due to differences in design principles, material selection, and use environment, there is no unified answer to the service life. It needs to be comprehensively judged based on actual working conditions. Among them, the reverse arch clamping bursting disc (YJ type) is a widely used type, and its service life characteristics deserve in-depth understanding.
Judging from the core attributes of bursting disc, it is a “disposable” safety device. Its core role is to quickly achieve pressure relief by breaking or flipping when the system pressure exceeds the safe range. Once the pressure relief action is triggered, regardless of the degree of damage to the bursting disc, it must be replaced immediately and cannot be reused-this is a common feature of all bursting disc, and the reverse arched clamping bursting disc (YJ type) is naturally no exception. In the “normal service stage” where the action is not triggered, its service life will be significantly affected by multiple factors.
Material is a key factor in determining the basic life of bursting disc. Taking the reverse arched clamping bursting disc (YJ type) as an example, the body of the bursting disc is made of metal material with strong weather resistance, and the gripper (support ring) will also choose the appropriate metal material according to the working conditions. Such materials have good resistance to non-corrosive gaseous media under conventional working conditions. If the use environment meets the recommended conditions and has not suffered special damage, the normal service cycle is relatively stable. However, if the medium in contact is corrosive, or the temperature and pressure during use frequently exceed the appropriate range, it will accelerate the aging, corrosion or fatigue of the material, thereby significantly shortening the service life. At this time, replacement needs need to be evaluated more frequently.
Working conditions have a more direct impact on the life of bursting disc. Although the reverse arched clamping bursting disc (YJ type) has strong fatigue resistance and is suitable for use in situations where pressure fluctuates, it will still cause fatigue damage to the bursting disc body if it is in a high-frequency pulsating pressure environment for a long time. This kind of damage continues to accumulate and may cause the bursting disc to rupture or fail early. In addition, if the medium in the system remains and attaches to the surface of the bursting disc (such as fouling and crystallization), and is not cleaned up in time, it may not only clog the pressure relief channel, but also cause local corrosion to the material, destroy the structural integrity of the bursting disc, and further shorten its service life.
Daily maintenance and inspection are important guarantees to extend the service life of bursting disc and make it operate reliably. In view of the maintenance needs of the reverse arched clamping bursting disc (YJ type), regular visual inspections are required to check whether there are corrosion marks, cracks or deformation on its surface; At the same time, check the sealing between the bursting disc and the gripper to prevent indirect damage caused by media leakage; When cleaning, use a soft cloth or a non-metallic brush to remove the residual media on the surface and avoid scratching the surface with sharp tools. If the surface of the bursting disc is found to be significantly damaged, severely corroded or the seal fails during the inspection, even if it does not reach the theoretical service cycle, it needs to be replaced immediately to avoid safety risks due to continued use.
Therefore, the service life of the bursting disc is actually not a fixed period of time. The termination of its “effective life” either triggers the pressure relief action or there is damage that affects the safety performance. For products with advanced design and excellent materials such as reverse arch clamping bursting disc (YJ type), they can achieve a long safe service cycle under the premise of meeting the recommended working conditions and doing a good job of daily maintenance, but they still need to be regularly evaluated in accordance with actual use conditions, always follow the principle of “safety first”, and promptly replace the bursting disc with hidden dangers in order to truly play its safety protection role.
