Plate (PL) Flanges

Simple structure: the structure of Plate (PL) Flanges is relatively simple, easy to manufacture and process, and low cost.
Reliable connection: connected by flat welding, the connection between flanges and pipes or equipment has high strength and good sealing performance, and can withstand large pressure and temperature fluctuations.
Wide range of application: it can be used for a variety of media and working conditions, such as low pressure, low temperature, non-flammable and explosive, non-toxic and other media.
Convenient maintenance: when maintenance or replacement is required, it can be carried out by removing bolts and flange gaskets, without the need for large-scale dismantling of the whole piping system.

Material: Plate Flat Welding Flanges are made of various materials, including carbon steel, stainless steel, alloy steel, etc. to meet the needs of different media and working conditions.
Standard: The standard of this type of welding plate generally complies with international or national standards, such as ANSI B16.5, HG20616-1997, GB/T9116.1-2000, etc. These standards specify the flange size, specifications, tolerances, test methods and other requirements.

The dimensions and specifications of plate flat welding flanges are usually determined according to the needs of the pipeline system, including flange diameter, thickness, and the number and distribution of bolt holes. Common diameter ranges are usually DN10-DN6000 (depending on the manufacturer and standard), and pressure ratings include PN series (e.g. PN6-PN160) and Class series (e.g. Class150-Class2500).

Selection: When selecting plate flat welding flanges, it is necessary to consider the medium, pressure, temperature and other parameters of the piping system, as well as the material, specifications and connection methods of the flanges. Ensure that the selected flange can meet the needs of the system.
Installation: In the installation process, it is necessary to ensure that the connection between the flange and the pipeline or equipment is clean and smooth, and tighten the bolts according to the specified torque to ensure the reliability and sealing of the connection. At the same time, it is also necessary to pay attention to the selection and installation of flange gaskets to ensure the sealing effect.
Maintenance: In the process of use, it is necessary to regularly check the connection status and sealing performance of the flange, and if there is any abnormality, it needs to be dealt with in time. In addition, it is also necessary to pay attention to antirust and anticorrosion treatment of the flange to extend its service life.