Weld Ring Gaskets
Absolute gas tightness
Weld ring gaskets (according to DIN 2695) always form a pair. These are individually welded onto the flange surface and welded together. This sealing technique achieves absolute gas tightness.
There are two types of weld ring gaskets:
- With hollow lip: profiles WRG-WR and WRG-WRL
- Without hollow lip: profiles WRG-FG and WRG-WL
Profiles without hollow lips are mainly used for flange pairs of the same type where no particular expansion differences occur.
- Diaphragm-weld gasket
- With welding lip
- With welding ring
- Metallic sealing surface with convex sealing surface with lens-shaped welding ring and metallic O-ring
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