What’s sealing principle and characteristics of plate flange?

The sealing problem of plate flange is always a hot issue related to the production cost or economic benefit of enterprises,so the sealing principle of plate flange has been improved.However,the main design shortcoming of plate flange is that it cannot prevent leakage.This is a design flaw: the connection is dynamic,and periodic loads,such as thermal expansion and fluctuating loads,can cause the flange faces to move, affecting the function of the flange, thereby damaging the integrity of the flange and ultimately leading to leakage.

Galvanized BS4504 forged plate flanges

Galvanized BS4504 forged plate flanges

No product can be without defects, but try to control the defects of the product to the minimum, so the company tries to improve the performance of the product in the production of plate flange,play the largest role. Features of plate flange: plate flange not only saves space, reduces weight, but also ensures no leakage at the joints and good sealing performance.By reducing the sealing diameter, the size of the compact flange is reduced and the sealing section is reduced.

Next, replace the flange gasket with a sealing ring to ensure that the sealing surface matches the sealing surface. In this way, only a small amount of pressure is needed to secure the sealing surface.As the required pressure is reduced, the size and number of the bolt is less, so we design a new product with small volume and light weight, can make the traditional flange weight reduced by 70% to 80%. As a result, plate flange has high quality, reduces the quality and space, and played an important role in industry application.

JIS B2220 Slip On Plate Flanges

JIS B2220 Slip On Plate Flanges

Sealing principle of plate flange: the two sealing faces of the bolt squeeze flange gasket to form a seal, but this can also cause seal damage.To keep the seal, you have to keep a big bolt force, and to do that, you have to make the bolt bigger.The larger bolt matches the larger nut, which means that a larger bolt diameter is needed to create conditions for fastening the nut.However, the larger the diameter of the bolt, the bent flange will occur, the only way is to increase the flange part of the wall thickness.

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