The bursting disc is arranged on the closed pressure vessel or pipe system.

Bursting disc is a safety valve. A membrane. Broke, broken forever. Considering the pressure in the container medium if the harm is great, you have to use this, if the safety valve, when the pressure is high, the safety valve, but the pressure falls, and spring back, may cause poisoning the environment. So, like a great harm to the media, it is simply to use the bursting disc, as long as the pressure is high, the touch on the broken, has been out of the pressure of the state, the media are discharged. So safe

The manufacturing scope and the bursting pressure of the bursting disc allows different, the provision of a number of discs at the time of delivery, the distribution range of blasting pressure calibration, and the latter is the actual test of blasting pressure relative to the calibration of blasting pressure allowance. When the supply and demand sides agreed to adopt a certain (standard or non-standard) manufacturing scope, in fact, the provisions of the bursting of the blasting range. When a lot of blasting pieces are determined by the sampling blasting test, the blasting pressure deviation is in accordance with the blasting pressure determined by the sampling blasting test. Under normal circumstances, it is not suitable to choose the zero manufacturing range. When it is necessary to choose a zero manufacturing area, it should be negotiated with the manufacturer. When the design blasting pressure is less than 0.3MPa, the supply and demand sides agreed that a large range of manufacturing can be accepted by both parties.

It should be like this.