Welding Ring Gaskets
The Weld Ring Gasket is a sealing system designed for critical applications in which must be ensured a watertight joint (heat exchangers, thermal reactors, chemical equipment, etc..).
The special reasons that require the use of this type of gasket are containment of hazardous fluids and the combination of difficult working conditions (thermal shock, vibration, axial or lateral flange movement, etc..).
The single gasket is formed by a pair of rings having a cross section specular between them.
Each ring is welded to its flange and then welded together on their outer diameter, a joint completely welded ensure the tightness.
To avoid welding problems, galvanic corrosion and differential thermal expansion, the material of the gasket should be the same or at least similar to the flanges material.