Seamless Layer Bonding Structure Solving Delamination Risks of Buried Piping

The polyurethane insulation pipe is mainly used for the thermal insulation and anti-corrosion of buried steel pipelines, and is widely used in central heating, cooling, petroleum, chemical, natural gas and other pipeline projects. Because its three-layer structure combines thermal insulation, waterproof and anti-corrosion functions, it is especially suitable for directly buried installation, effectively reducing heat loss and extending the service life of the pipeline.

The polyurethane insulation layer adopts a high-pressure foaming process, and the rigid polyurethane foam is uniform and dense with low thermal conductivity and good insulation performance. It can effectively reduce heat loss during pipeline transportation, keep the medium temperature stable, and lower energy consumption, making it especially suitable for heating and cooling projects with high insulation requirements.

The polyurethane insulation layer itself has a waterproof function, and the outer high-density polyethylene protective layer further provides anti-corrosion, waterproof and protective effects. The high-density polyethylene outer protective layer has strong resistance to mechanical damage and can effectively protect the polyurethane insulation layer from mechanical hard objects, so it is not easy to damage during transportation, construction and buried operation, resulting in a long service life.

The processing range of the "one-step method" polyurethane prefabricated directly buried insulation pipe is DN15-300, and it can be customized according to specific project design and customer requirements. The working steel pipe can be seamless pipe, spiral welded pipe or straight seam welded pipe, and the insulation layer and outer protective layer can also be adjusted according to the use environment.

The polyurethane prefabricated directly buried insulation pipe is produced in a factory prefabricated manner. On site, only joint treatment and directly buried installation are needed, making construction convenient and the construction period shorter. At the same time, the outer protective layer can withstand a certain amount of mechanical external force, making it suitable for use in various construction environments.