What is a flange? What are the common classifications?
Release time:2025-05-12
A flange is a component used to connect pipes or equipment, commonly used in piping engineering and mechanical equipment. Its main function is to provide a connection point between pipes or equipment to ensure that the medium can flow smoothly and has good sealing performance.
There are many types and specifications of flanges, and the common classifications are as follows:
I. Classification by connection method
1. Butt weld flange: Suitable for connecting medium and low-pressure pipelines, the connection method is simple, and it is easy to manufacture and maintain.
2. Weld neck flange: Suitable for connecting high-pressure pipelines, with higher strength and sealing performance.
3. Threaded flange: Connected by threads, suitable for smaller diameter pipes, easy to install.
4. Slip-on flange: Suitable for pipelines with welded connections, good sealing performance.
II. Classification by material
1. Carbon steel flange: A commonly used flange material with good cost performance.
2. Stainless steel flange: Corrosion-resistant and high-temperature resistant, suitable for pipeline connections in corrosive media and high-temperature environments.
3. Alloy steel flange: Has special chemical properties, suitable for pipeline connections in special media and high-temperature and high-pressure environments.
III. Classification by standard
1. National standard flange: Flanges manufactured according to national standards, with high interchangeability and universality.
2. American standard flange: Flanges manufactured according to American standards, suitable for the needs of specific fields.
3. German standard flange: Flanges manufactured according to German standards, with high precision and quality.
In addition, there are many other ways to classify flanges, such as classification by pressure level and sealing surface form. In practical applications, it is very important to choose the appropriate flange type and specifications, and it is necessary to choose according to the working conditions, medium, pressure, etc., of the pipeline or equipment.
The selection of flanges is not only related to the normal operation of pipelines or equipment but also related to safety and environmental protection. Therefore, when selecting flanges, various factors need to be fully considered to choose the appropriate material, specifications, and type. At the same time, during installation and use, relevant regulations and standards must be followed to ensure the normal operation and service life of the flange.
In short, flanges are important connecting components widely used in piping engineering and mechanical equipment. There are many types and specifications, and the selection should be based on actual needs and working conditions.
Keywords:
Aohui Forging
Aohui Flange
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