Case Studies


Riyadh Metro Project, Riyadh

Viking Johnson supplied over 200 stepped couplings & flange adaptors for relaying the potable water system serving the City to accommodate the construction of the Riyadh Metro System. When complete the RMS will consist of six metro lines spanning a total length of 176 kilometres, with 85 stations.

Exact sizes were not known until the original pipework was uncovered and measured by the contractor, Viking Johnson were then able to supply a bespoke solution for connecting the various pipe materials and sizes within a demanding timeframe.


Royal Commission for the Riyadh City (RCRC)


Rezayat Trading


Large Diameter Stepped Couplings, Flange Adaptors – PN16, up to DN 1200

March 2021

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