If you want to ask what is the best sealing flange, the top ranked flange must be a flat welded flange!
We all know that flat welded flanges are a type of flange, so is the sealing performance really as good as it is said? Experts explain that flat welded flanges have the best sealing performance! How did that happen? Is there any reason? Today, let me talk to you about its sealing principle.
Generally, flat welded flanges have bolts, which is not surprising, but it can indeed enhance sealing performance! Most of the flat welding flanges we see have bolts, which is why flat welding flanges can seal. Why can flat welded flanges be sealed? We noticed that flat welded flanges have bolts and can cause two sealing surfaces to compress each other, which can achieve sealing effect!
Flat welded flanges also have gaskets! And the sealing performance is not poor. Moreover, flange gaskets can also enhance sealing performance, thereby achieving a sealing effect. What force must we use to maintain the seal? Yes, the function of bolts! Using a huge bolt force can strengthen the thrust, and for this reason, bolts need to be made very large. That's why the flange bolts we see are very large. And large bolts need to match large nuts, so it is often seen that bolts with larger diameters are used to tighten the nuts.
What other accessories are there? Bolt! We use bolts to enhance the bearing capacity! Why is it better to have larger bolts? Because the larger the diameter, the better, it can increase the wall thickness of the flat welding flange and increase its load-bearing capacity. So when producing flat welded flanges, try to improve the performance of the product as much as possible to maximize its effectiveness.
This is why we see flat welded flanges with large thickness, compact bolts, and high load-bearing capacity.