In the course of long-term operation, in-pipe diagnostics reveal external and internal defects in pipe metal and welded joints that are considered dangerous according to current non-destructive testing standards. The nature of the defects varies. These are mainly defects associated with exposure to corrosive environments, mechanical damage to pipes and welded joints, and welding defects that occurred during welding and installation work during pipeline construction.
One of the new activities of LLC SPE UKRTRUBOIZOL is the production of repair structures for main pipelines. Our company has mastered the production of three types of repair structures:
Type 1 – split bandage (consists of two elements – a central ring and two half-sides);
Type 2 – hermetic coupling with split rings (consists of six elements – a central ring of two half-shells and two process rings of four welded half-shells);
Type 3 – double-layer hermetic coupling with split rings (consists of 14 elements).
The technical requirements for repair structures are quite stringent in terms of the geometric parameters of the bent parts they consist of. This is due to the need to ensure a precise fit of the elements and high-quality welding conditions. Non-destructive testing of bent parts is also mandatory. The elements are protected against atmospheric corrosion (priming). Each type is additionally equipped with mounting kits and lining tapes.
The customers paid special attention to the requirements for product packaging, labeling, identification and traceability.
The development of new types of products is a priority for UKRTRUBOIZOL LLC. Today, our company is already a supplier of integrated solutions for main product pipelines (large-diameter steel pipes, internal and external coatings, joint protection materials, repair structures, etc.)
