When requirements cannot be met with an off-the-shelf valve, Carnegies Riverside Ltd is able to provide our customers with a wide range of modifications to new valves through our sister companies - Gulf Coast Modification in North America and Adanac in Europe. Both companies feature ISO-based quality systems that have been audited and approved by most major valve manufacturers, and their membership and involvement in organizations such as the API, MSS, BVAA, and VMA/VRC ensure modifications are compliant with the latest industry standards.