A non-permeable universal fitting, available as a coupling or a flange adaptor to be used on new installations and repairs to connect different barrier pipe systems reliably.

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Latest News

Are you AMP8 / SR27 ready?

18 Aug 2026

As the water industry prepares for the next investment period, having the right support in place is essential.

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Case Studies

Large Diameter Stepped Coupling - Mining - Chile

Viking Johnson has supplied 116 Large Diameter Dedicated Stepped Couplings to Codelco’s Andina mine in Chile.

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