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The works consist of cleaning and checks of the bottom lines, tower shell welds, dismantling and reconnection of the piping, electrical circuits and instruments and by the end the pressure test.

Maintenance and Revamp of Cooling Towers in industrial Units with main tasks the restoration or replacement of the wooden structures (roof, decks, frame beams and columns, brackets, traverses etc.), the restoration of the water distribution system, the water collection basin and the outer shell. Also tasks such as the maintenance of the packing, drift eliminators

Pressure Vessels maintenance works such as opening, cleaning and inspection of the interior parts and filters, dismantling and maintenance of the external ancillary components (valves, level instruments, etc.), reconnections and hydrostatic pressure testing, according to ASME Code, Section VIII, Division I and additional provisions according to customer’s specifications.

Valve works during the oil Refinery regular maintenance, such as inspection, repair, restoration and reinstallation of valves of various types (gate, globe, piston, check, orbit, etc.) and of piping components (nipples, manifolds, drains, etc.), construction of piping tie-ins, hydrostatic testing and Post Weld Heat Treatment of the lines.

Annual Maintenance of the Refinery Boilers with works including the installation blinds, removal of manways and other external components, mechanical checks of the steam safety valves,  tubes cleaning, pressure test and the final restoration of the boilers.

Maintenance works on fuel storage tanks, fixed or floating roof type. The operations include opening of the manholes on the shell and roof, complete emptying of the tank with air operated pump, ventilation and checks about the explosivity of the atmosphere, cleaning, roof supporting, checking for any differential settlement and shell geometry and restoration of

The scope of work includes the replacement of extruder’s and gear box’s several parts such as bearings and gears.

Execution of the periodic maintenance works of all processing lines of the metalworks factory Hellenic Steel Mill S.A. (RIVA GROUP) in Thessaloniki, including the Pickling, Annealing, Tinning, Electrolytic cleaning line, galvanizing of the steel sheets, etc.