Do You Know All About The Characteristics Of Flat Welding Flanges?

Flat welding flanges are commonly used components in pipeline construction. Because flat welding flanges have many advantages in the use process, they are widely used. I believe everyone is very curious about flat welding flanges. Flat welding method What are the characteristics of Lan, let's take a look!

Although the flat welding flange has certain advantages in actual use, its defects are also obvious. Due to some defects in its own design, it is difficult for the flat welding flange to ensure that it will not leak during connection. The following is the flat welding flange Some flaws in the design, the connection is dynamic, periodic loads (such as thermal expansion and fluctuations) will cause movement between the flange and the flange, the plane, which will affect the function of the flange and flange, thereby destroying the integrity of the flange, and eventually lead to a leak.

It is impossible for any product to be defect-free, and the shortage of products can only be controlled to a minimum. Therefore, as long as the production process of flat welding flanges is continuously improved, the performance of flat welding flanges can be effectively improved, and leakage can be avoided as much as possible. Can play the biggest role in welding, flat welding flange not only saves space and weight, but also has good sealing performance to ensure that the joint will not leak, compact structure leads to smaller flange size and smaller sealing diameter, Secondly, the flange gasket has been replaced with a sealing ring to ensure the matching of the sealing surfaces, so that only a small amount of pressure is required to hold the cover tightly. As the required pressure decreases, the size and number of bolts are also reduced accordingly, and finally A new product with small size and light weight (70% ~ 80% lighter than traditional flanges) is designed, so the flat welding flange is a relatively high-quality product from flanges and flanges, reducing mass and space, in important role in industrial applications.

The sealing principle of flat welding flange The two sealing surfaces of the bolt press the flange gasket together to form a seal, but this will also lead to the destruction of the seal. In order to maintain the seal, it is necessary to maintain a large bolt force, so the bolt must be It needs to be larger, and the larger bolt must be matched with a larger nut, which means that a larger diameter bolt is required to create conditions for tightening the nut. However, the larger the diameter of the bolt, the less suitable the flange is, the flange is likely to bend, and the only way to do this is to increase the wall thickness of the flange section.