GB/T 567.3-2012Bursting disc safety devices - Part 3: Classification and mounting dimensions (English PDF)

1.1

This Part of GB 567 specifies the technical requirements such as classifications, types, code names, marking methods, and mounting dimensions of bursting disc safety devices.

1.2

This Part is applicable for the following bursting disc safety devices.

- This Part is applicable for the bursting disc safety devices used by pressure vessels, pressure pipelines or other sealed pressure-bearing equipment (hereinafter referred to as pressure-bearing equipment) to prevent over-pressure or the appearance of excessive vacuum.

- This Part is applicable for the bursting disc safety devices of which the bursting pressure is not higher than 500 MPa and not lower than 0.001 MPa.

1.3

This Part is not applicable for the following bursting disc safety devices.

- The pressure-bearing equipment that may appear pressure explosion, and reach the detonation reaction velocity during the operation process.

- The bursting disc safety devices used in national defense military equipment which have special requirements.

Note. Phenomenon that is generated very differently from the common burning and explosion when the burning rate of the material is quickly, above 1 000m/s, is known as detonation.

3.1

Conventional simple domed [Translator. conventional simple domed bursting discs]

Conventional domed bursting discs of which the bursting discs do not need other processing and are shaped directly from blank.

3.2 Conventional domed slotted lined bursting disc

Bursting discs that are made up of two layers or more than two layers, one of the layers is sealing lining, and at least one of the layers is the conventional domed bursting disc with holes (seams).

3.7 Reverse domed slotted lined bursting disc

Bursting discs that are made up of two layers or more than two layers, one of layers is the sealing lining, and at least one of layers is the reverse domed bursting disc with holes (seams).

3.8

Reverse domed having slip or tear-away design [Translator. reverse domed having slip or tear-away design bursting discs]

Reverse domed bursting discs of which the bursting discs are held in the holders by the pressing force; under the over-pressure condition, the bursting discs will be unstable, overturn quickly, slip and pop-up from the holders.

3.14 Graphite replaceable element graphite bursting discs

The graphite discs which are mounted and used in conjunction with holders.

3.15 Graphite monoloc graphite bursting discs

The graphite bursting discs which do not need holders and are directly mounted and used in conjunction with flange.

4.1 Classifications and types of bursting discs

Bursting discs can be divided into the following four classifications from a) to d) according to the failure forms and different materials. According to different structural features, each classification can be divided into different types.

5.1 Code names of bursting discs

5.1.2 Code names of bursting discs' types

5.1.2.1

Naming principle of code names of bursting discs' types shall meet the following requirements.

5.1.2.2

Code names of bursting discs' types shall meet the following requirements.

5.1.3 Marking methods of bursting discs' code names

5.1.3.1 Naming principle of bursting discs' code names

The code names of bursting disc safety devices shall have the following contents, which shall be arranged successively.

5.1.3.2

Marking methods of bursting discs' code names shall be in accordance with the specifications of A.2 in Annex A.

5.2 Code names of holders

5.2.1 Code names of holders' classifications

5.2.1.1 Naming principle of code names of holders' classifications

It is expressed with the classification code names of its applicable bursting discs and the letter “J”.

6.1

According to the operating requirements of the bursting disc safety devices, choose the appropriate mounting types of holders. The mounting dimensions of bursting disc safety devices are determined by the overall dimensions of its holders.

6.2

The basic mounting structural types of holders include the ordinary type, enlarged type, screwed type or other structural types; the determination of its mounting dimensions refers to the specifications in Annex C; the holders design shall comply with the relevant specifications of GB567.1.

6.3

The basic mounting dimensions of bursting disc safety devices shall be negotiated and determined by the manufacturing organization and the using organization, but it shall comply with the specifications in GB 567.1.The mounting dimensions of bursting disc safety devices which are commonly used refer to the specifications in Annex C.

GB 567.1-2012 | GB 567.4-2012 | GB 567.2-2012 | GB/Z 168-2026 | […]