1. The technical parameters of the installed bursting disc safety device should be checked to ensure that they are consistent with the requirements of pressure-bearing equipment.

2. Read the installation instructions carefully, understand the installation requirements, and operate in strict accordance with the requirements of the installation instructions.

3. Before installation, the pipeline system should be cleaned to prevent solid objects from damaging the bursting disc. Sealing surfaces such as flanges and holders should be cleaned and wiped clean, and damage to the sealing surface should be avoided when wiping.

4. Unless otherwise agreed by the manufacturer, no component of the bursting disc safety device should be changed under any circumstances.

Explosive disc

Holder

Flange and bolt system

Sign

5.6.1 When selecting a bursting disc safety device, the replacement cycle of the bursting disc must be considered. The replacement cycle depends on factors such as the type, model, and material usage conditions of the bursting disc. The replacement cycle of the bursting disc can be determined by referring to the provisions of Appendix D.

5.6.2 In any of the following situations, the bursting disc should be replaced:

B6.3.1 Bursting disc replacement

The replacement cycle of bursting discs should be reasonably determined based on specific influencing factors such as equipment usage conditions, medium properties, or the expected design service life. Generally, the replacement cycle of bursting disc devices is 2 to 3 years. The replacement cycle should be shortened for bursting disc devices used in corrosive, toxic media and harsh conditions.

The bursting disc device should be replaced immediately when the following conditions occur:

(1) There are problems described in (1)~(3) in B6.2;

(2) The minimum burst pressure exceeds the equipment operation but does not burst;

(3) The operating temperature during equipment operation exceeds the allowable operating temperature range of the bursting disc device material; (4) The equipment is disassembled during maintenance;

(5) After the equipment has been shut down for a long time (more than 6 months), it is put into use again

Add bursting disc in front of safety valve

Add bursting disc after safety valve

Leak detection and back pressure elimination

Explosive disc

gasket

5.5.9 A bursting disc should be installed in front of the safety valve of equipment with higher concentration of ethylene oxide. The inlet pipe of the bursting disc should be equipped with nitrogen seal, and the outlet pipe of the safety valve should be filled with nitrogen.

Any container that falls under any of the following conditions must be equipped with a bursting disc:

1. Situations where the pressure of the container may rise rapidly;

2 A larger relief area is required;

3. The discharge medium contains particles, is easy to precipitate, is easy to crystallize, and has a high viscosity;

4. The release medium is highly corrosive and the cost of using a safety valve is very high;

5. The working pressure is very low or very high, so it is difficult to manufacture a safety valve;

6. When the operating temperature is very low and affects the working characteristics of the safety valve;

7. In some cases, the process medium is very valuable or highly toxic, and no leakage is allowed during the working process. It should be used in series with the safety valve;

8. In order to increase the relief area under abnormal working conditions (such as fire, etc.), bursting discs can be used in parallel.

Places with frequent overpressure