What is the principle of sealing of stainless steel flange

Rust -steel flanges have good comprehensive performance (corrosion resistance and molding). The principle of sealing of stainless steel flange is what stainless steel flange bolts are squeezed with each other and seal them, but this also leads to sealing sealing Destruction. In order to keep sealed, we must maintain a huge bolt force. For this reason, the bolt will be greater. The larger bolt must match the larger nut, which means that the bolt with a larger diameter is required to create conditions for the upper tight nut. As everyone knows, the larger the diameter of the bolts, the applicable stainless steel flange will become bending. The only way is to increase the wall thickness of the flank. The entire device will require great size and weight, which becomes a special problem in an offshore environment, because in this case, weight is always the main problem that people must attract attention. Moreover, fundamentally, flanges are an invalid seal. It needs to use 50%bolt load to squeeze the pad, and only 50%of the load for maintaining pressure. The main design disadvantage of flange is that it cannot guarantee no leakage. This is its design deficiency: connection is dynamic, and cyclical loads such as thermal expansion and undulating periods will cause movement between flange surfaces, affecting the function of flange, which will damage the integrity of stainless steel flange. In the end, Cause leaked.