What Is Bursting Disc in an Air Compressor?

2025-10-13

The bursting disc in the air compressor is a pressure relief safety device designed for compressed air systems. Bursting disc is usually installed in compressor gas storage tanks, exhaust pipes or other pressure-sensitive parts, and works with protective equipment such as safety valves to form a multi-level pressure protection system. The working principle of bursting disc is based on the mechanical properties of the material and the precise structural design. When the internal pressure of the air compressor rises sharply due to equipment failure, valve misoperation, air path blockage, etc., and reaches the bursting pressure pre-set by the bursting disc, the bursting disc will quickly rupture, instantly releasing the high-pressure gas in the system, reducing the pressure to a safe range that the equipment can withstand, thereby preventing serious accidents such as gas storage tank bursting, pipeline leakage, and even explosion.


bursting disc


Compared with other industrial scenarios, the operating conditions of air compressors put forward more special requirements for bursting disc. Because the compressor will produce periodic pressure fluctuations and mechanical vibration when working, this requires bursting disc to have excellent fatigue resistance, be able to maintain stable burst pressure accuracy in frequent pressure changes, and prevent early rupture due to fatigue failure or failure to operate normally during overpressure. Moreover, compressed air may carry lubricating oil, moisture and solid particles under high temperature and pressure. These media can easily cause corrosion, wear or clogging of the bursting disc material. Therefore, the material of the bursting disc needs to have good chemical stability and anti-pollution ability. In addition, since the air compressor is usually used as the core power source of the production system, once the bursting disc ruptures and the shutdown is caused, the entire production line will be shut down, which requires the bursting disc to be designed not only to achieve safe discharge, but also to minimize the loss of unplanned downtime caused by accidental rupture as much as possible.


Facing the complex safety protection needs of air compressors, we have relied on years of technical precipitation and practical experience to develop a series of bursting discs that can meet the requirements of air compressors. In terms of material selection, for the corrosive components that compressed air may carry, we use a combination of special alloy materials and anticorrosive coating technology. For example, 316L stainless steel with excellent corrosion resistance is selected as the substrate, and a dense protective film is formed through surface chemical treatment technology, which can not only resist the erosion of the oil-water mixture, but also prevent the erosion and wear of solid particles, which can extend the service life of bursting disc. In terms of structural design, we innovatively apply anti-fatigue optimization structure. Through the unique arched profile and stress distribution design, the bursting disc can withstand up to tens of thousands of pressure cycles without failure, effectively responding to vibration and pressure fluctuations in compressor operation. If you need it, you are welcome to contact us at any time, we look forward to your message!


bursting disc

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