| Standard: | ANSI, DIN, GB, JIS, GOST, BSW |
|---|---|
| Type: | Tube Sheet Flange |
| Material: | Carbon Steel |
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| Working Principle | Relying on the tightening force of the bolts, the sealing surface of the tube sheet flange and the sealing surface of the corresponding connecting component are pressed against each other, and the gasket is tightly pressed in the middle, thus forming a seal to prevent the medium from leaking at the connection part. At the same time, the tube sheet bears the loads such as pressure and temperature from the tubes and the medium, and transfers these loads to the equipment or structure connected to it |
| Application Fields | Petrochemical Industry: In various equipment such as reactors, heat exchangers, and towers, it is used to connect the tube bundle with the equipment shell to ensure the smooth progress of processes such as the isolation of different media and heat exchange inside the equipment. |
| Power Industry | In equipment such as boilers and condensers, it is used to connect the pipeline with the tube sheet to ensure the reliability of the transportation and heat exchange processes of media such as high-temperature and high-pressure steam and water. |
| Refrigeration and Air Conditioning Industry | In components such as evaporators and condensers of large central air conditioners, it is used to connect heat exchange tubes such as copper tubes with the tube sheet of the equipment to achieve the heat exchange between the refrigerant and media such as air or water. |
| Domestic Standards | For example, GB/T 151 "Heat Exchangers" has relevant regulations on the design and manufacture of tube sheets, involving contents such as the calculation of tube sheet thickness and the arrangement of tube holes. Chemical industry standards such as HG/T 20592-HG/T 20635 have provided detailed specifications for the dimensions, sealing surface forms, and technical requirements of tube sheet flanges. |
| International Standards | ASME BPVC "Rules for Construction of Pressure Vessels" has comprehensive regulations on the design, materials, manufacture, and inspection of tube sheet flanges, and is widely adopted in the international engineering field. EN 13445 "Unfired Pressure Vessels" also contains standard contents related to tube sheet flanges, which are applicable to the manufacture and installation of relevant equipment in the European region. |
| Compared with Long-necked Flanges | : Long-necked flanges mainly focus on the connection between pipelines. The structure of the long neck part can provide better stress transfer and support, and is suitable for more demanding working conditions such as high temperature and high pressure. Tube sheet flanges focus more on the connection between pipelines and tube sheets as well as between tube sheets and equipment, with the emphasis on the fixation and sealing of the tube sheet, as well as the overall coordination with the equipment. |
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