High pressure flange is a widely used connecting device in the industrial field, used to connect pipelines, valves, flanges, and other equipment. The high-pressure flange forms a tight connection through the tightening of bolts and nuts, ensuring the safe and reliable operation of the pipeline system.
High pressure flanges can be classified into various types based on their design and usage, some of which are common:
1. Weld Neck Flames: Welding flanges are commonly used in high temperature and high pressure environments, and their long neck design helps to disperse pressure and improve the strength of the connection.
2. Blind flanges: Blind flanges are used to seal one side of a pipeline system and are commonly used for maintenance, repair, or sealing of pipelines.
3. Slip On flanges: Slip on flanges are easy to install and are typically used for low pressure and non critical applications, suitable for temporary connections.
4. Thread flanges: Thread flanges are suitable for low-pressure environments and are typically used for small diameter pipeline connections.
5. Socket Weld Flanges: Flat welding flanges are connected by welding and are suitable for small diameter and low-pressure systems.
6. Flange Cover: Used to protect the flange connection surface from external environmental influences and extend the service life of the flange.
The pressure rating of high-pressure flanges is an important indicator for their design and manufacturing, indicating the maximum pressure that flange connections can withstand. Common pressure levels include:
1.150 pound flanges: suitable for low-pressure applications, such as water supply systems.
2.300 pound flanges: medium pressure rating, commonly used in general industrial applications.
3.600 pound flanges: used in high pressure environments such as the chemical and petroleum industries.
4.900 pound flanges: High pressure applications, such as steam conveying systems.
5.1500 pound flanges: For special applications under extremely high pressure conditions.
6.2500 pound flanges: highly specialized for special occasions with extreme high pressure.
The manufacturing and use of high-pressure flanges are regulated by a series of international standards to ensure their quality, safety, and reliability. Some common international standards include:
ASME B16.5: The flange standard published by the American Society of Mechanical Engineers (ASME) covers various types and pressure ratings of flanges.
EN 1092: European standard, which specifies the design and manufacturing requirements for steel flanges.
JIS B2220: Japanese industrial standard, specification for threaded flanges.
DIN 2633: German standard, including provisions for the dimensions and design of flange connections.
GB/T 9112: Chinese National Standard, which specifies the dimensions, structure, and technical requirements of flanges.
Following the corresponding international standards when selecting and using high-pressure flanges is a crucial step in ensuring system safety and performance.
Overall, high-pressure flanges, as key components for pipeline connections, play an important role in the industrial and manufacturing fields. By understanding their different types, pressure levels, and international standards, it is possible to better select and apply high-pressure flanges that are suitable for specific needs, thereby ensuring the smooth operation and safety of the system.
Post time: Jan-25-2024