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  • Flat Welding Flange.jpg

Flat welding flange

‌Plate flat welding flange‌ is a common type of flange that is widely used in various industrial fields.
  • Commodity name： Flat welding flange

Category:

Plate Flange

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  • Product Description

  • ‌Plate flat welding flange‌ is a common type of flange that is widely used in various industrial fields.

    Basic information

    Flat Welding Flange is also called flat plate flange or lap-welded flange. Its materials are easy to obtain, simple to manufacture, and low cost, so it is widely used. The plate flat welding flanges include chemical HG20592, national GB/T9119 and mechanical JB/T81, etc.

    Scope of application and features

    Plate flat welding flanges are suitable for low pressure levels and are usually used for connection between medium and low pressure vessels and pipelines. Due to its poor rigidity, it is not suitable for chemical process piping systems and extremely hazardous occasions with supply and demand, flammable, explosive and high vacuum requirements. The sealing surface types of plate flat welding flanges include flat surfaces and protruding surfaces, and common pressure levels include PN2.5, PN6, PN10, PN16, PN25, etc.

    Made materials

    Plate flat welded flanges can be made of a variety of materials, including carbon steel (such as Q235B, 20#, A105, 16Mn, etc.), stainless steel (such as 304, 304L, 316, 316L, 321, etc.) and alloy steel (such as 12Cr1Mov, 15CrMo, etc.).

    Installation and maintenance

    The installation of plate flat welded flanges is relatively simple. Just put the inner hole of the pipe flange to the appropriate position and then perform fillet weld welding. Because of its simple structure, it is also convenient to maintain. However, it should be noted that flat welded flanges do not allow direct welding to pipe fittings such as tees and elbows, and straight pipe sections are required. ‌

Key words:

Plate flange

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