Stainless steel PL flange products not only save space and weight, but more importantly, they can prevent joint leakage and provide excellent sealing capabilities. The reason for the reduction of the compact flange standard is that the diameter of the seal is reduced and the cross-sectional area of ​​the sealing surface is reduced. Ensure the integrity of the flange and prevent leakage. Do not tolerate non-defective products, but control the defects of the product to be minimized, which can improve the product's ability to create flat welded flanges to improve efficiency.

PL flange products correct installation sequence
First, before connecting PL flange products, first lift the inside and outside of the stainless steel pipe to be connected. Separate the flange with the grooved ring from the equipment connecting the pipe. The nozzle should be treated with a 90-degree flange, and the nozzle should be polished. After polishing, it should be vertical and flat without burrs, bumps, deformation, and nozzle problems.

However, the main disadvantage of stainless steel PL flange products is that we cannot guarantee that they will not leak. This is lack of planning. The connection is dynamic, for example, thermal expansion and fluctuating periodic loads constitute the movement between the flange faces. The large bolt should match the large nut. In other words, you need a large diameter bolt to create conditions for tightening the nut.

The larger the bolt diameter, the more useful the bending of PL flange products, which can only increase the wall thickness of the flange. Secondly, the flange gasket has been replaced with a sealing ring to ensure the matching of the sealing surface. Therefore, the pressure required to push close to the lid is small. As the required pressure drops, the standard and the number of bolts required can be reduced accordingly.

The sealing principle of stainless steel PL flange products is that the two sealing surfaces of the bolt knead the flange gasket to form a seal, which together constitutes a seal failure. In order to maintain the seal, a large bolt force needs to be maintained, so bolts must be added.