Flange And Pipe Connection Method

In industrial production and pipe transportation, the connection method between flange and pipe is very common. Because the flange connection method is easy to disassemble, has good sealing effect, is suitable for various pressure levels, and is suitable for various media, it is widely used in many connection methods. Common flange materials include carbon steel, stainless steel, alloy steel, brass, etc., while pipes mainly use carbon steel, stainless steel, steel-plastic composite pipes, steel wire stranded pipes, etc. The connection methods of different flange materials and pipe materials are also different, so it is necessary to choose a suitable flange supplier. For example, stainless steel flange connection, carbon steel flange connection, etc. are used in pipes. Let's take a closer look at several flange and pipe connection methods.

Welding connection

Welding connection flanges are mainly used for welding pipes. The advantage of this connection method is good sealing and no oil leakage. Note that when using welding connection, the weld should generally be flat and beautiful, and must be welded according to the corresponding welding parameters. When welding, you must pay attention to protecting the weld to prevent external impurities from entering, causing the weld to crack or become unsealed.

Threaded connection

Threaded connection flanges are generally suitable for small-diameter (DN≤50) pipe connections. The advantage of threaded flange is that it is easy to connect and disassemble. The things to know about threaded flange are: do not connect too hard, the depth of the connection should not be lower than the flange standard, and the correct conversion must be made according to the flange standard.

Flange connection

Flange connection is currently the most commonly used pipe connection method. This connection method uses the opening and bolts between the flange and the flange (there are also many pistons, springs, nuts, etc.) for connection. The advantages of flange connection are that it is easy to connect and easy to disassemble. What is important is that the sealing performance is good, and it is most convenient to replace the support when upgrading. However, the disadvantages of flange connection should not be underestimated. The sealing gasket needs to exert reasonable pressure on the pipe under the strong pressure of the nut.

Summary

When using flange to connect pipes, we need to pay attention to many factors such as the material, size, pressure level, medium, etc. of the pipe, and choose according to different connection methods. Through the connection methods described in this article, we hope that readers can better understand the flange connection method and use flange to connect pipes correctly to ensure the safety, stability and normality of pipe connections.