WALPRO™ Technology Two-edge cutting ring (profile ring), controlled final assembly WALRING™ WALFORMplus™ Two-edge cutting ring with captive seal, Cold reshaping of the tube end with machine assembly captive seal System features Force closure, combined sealing and retaining functions Force closure, separate sealing and retaining functions Form closure, separate sealing and retaining functions Sealing principle Metal-on-metal Elastomeric + Metal-on-metal Elastomeric + Metal-on-metal Prefabrication Assembly machine Assembly machine Reshaping machine Tightening travel for final in service assembly 30°– 60° after controlled final assembly 30°– 60° after machine assembly Up to the point of resistance Torque reduction ≈ 25% compared to manual assembly ≈ 25% compared to manual assembly of a cutting ring > 25% compared to manual assembly of a cutting ring Risk of assembly related failures Minimal with controlled final assembly machine Minimal with machine pre-assembly Minimal 3
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