Process corrosion & erosion damage in refinery and petrochemical process vessels is an operational reality. Process modifications, changes in feedstock, and the natural aging of equipment exacerbate the corrosion process. Without a permanent repair solution or preventative material upgrade strategy, operational reliability and vessel life will be compromised.
DTEC Engineering are uniquely positioned to provide turn-key column repair and material upgrade solutions. By combining specialist mechanical services with the Vclad® weld overlay technology we are able to efficiently integrate the Safety, Management, Quality and Production activities giving our clients a single point of contact and seamless continuity of service.
High temperature corrosion, and erosion-corrosion damage of tubes in fossil fuel, energy-from-waste, and biomass boilers can effectively be addressed by replacement with Vclad® weld overlaid tube.
Vclad® CMT spiral weld overlaid tube combines the economics and strength of a carbon or low alloy base tube material, with a Nickel Chromium weld overlay layer in a range of materials
Vclad® CMT is a system technology delivering an automated and controlled application of weld overlay by Cold Metal Transfer resulting in an ultra-low dilution of the applied alloy.
Weld overlaid boiler tube is a solution for localized and expansive corrosion management in water walls, screen walls, and superheaters.
Applications include the full range of typical boiler tube sizes, and uniquely, large diameter tube suitable for header manufacture.
Vclad® automated weld overlay has successfully been used to repair galvanic corrosion and erosion damage of Thruster Tunnels on large scale marine vessels, and provide a long term protection solution. Utilising an adapted system technology employed in our oil refining and petrochemical vessel repair services, our marine experience is an invaluable resource for the restoration and protection of submerged critical structures.
Vclad® weld overlay can be utilised for a wide range of equipment upgrade and repair situations. Erosion, abrasion, aqueous and high temperature corrosion, and chemical attack as can occur in a multitube of process and manufacturing conditions, can be mitigated by material upgrades applied with advanced weld overlay technology.