It is well known that pipes are connected by parts or other connections, such as welding. In general, the part that connects the pipe is called a flange. What do you know about Flanges? Next, I will tell you in detail.

What is flange?

Flange is a common disk in pipeline engineering. In general, flanges are used in pairs rather than individually. Flanges are usually used to connect pipes.

Separate flanges shall be installed for pipes to be connected. For low pressure piping, threaded flanges may be used; When the pressure is greater than 4kg, the welding method should be used. Two flanges can be joined by adding a sealed point between them and then fastening it with bolts. Under different pressure, flange thickness is also different. If a pump or valve is to be connected to a pipe, the parts of the equipment are also shaped into flanges. This connection is called a flanged connection. All connecting parts that are closed simultaneously by a bolted connection around two planes are usually called flanges. For example, the connection of ventilation pipes, such parts can be called "flange parts".

Flange material, specifications

The specifications and dimensions are only related to the connecting pipe. According to different conditions of use, such as working medium temperature, pressure, corrosion, etc., the flange has different material requirements, do not be free to use, otherwise it is likely to cause pipe burst accident, the consequences are very serious.

Flange material: 20#, A105, 12CIMOV, 16MnR, 15CrMo, 18-8, 321, 304, 304L, 316, 316L, etc., such as flange material is 20# steel, pressure resistance of 25 kg, that is to say, in the pressure resistance requirements of 16 kg pipeline can be used to withstand 25 kg flange.

Flange classification

Flanges can be divided into several parts according to different classification standards. The common ones are:

①If divided according to national standards, flanges can be divided into: threaded flange, butt welding flange, flat welding flange, flanged ring plate loose sleeve flange, flange cover.

② According to the standard of chemical industry: integral flange, threaded flange, plate flat welding flange, straight butt welding flange, neck flat welding flange, socket welding flange, butt welding ring looper flange, flat welding ring looper flange, lining flange cover, flange cover.

③ According to petrochemical industry standards: threaded flange, butt welding flange, flat welding flange, socket welding flange, loose flange, flange cover.

④ According to the machinery industry standards: overall flange, butt welding flange, flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flanging ring plate loose sleeve flange, flange cover.

Well, due to the length of the article, today's first talk so much, the above is about the meaning of flange, classification and function, I hope you have some understanding. There is a need to purchase French products, can log in Cangzhou Shenlong pipeline website www.slpipeline.com, the company specializes in the production of stainless steel products of various materials, reliable quality, is a lot of big brand trademark OEM factory.