Polyurethane heat preservation steel pipe heat preservation pipe is widely used in liquid and gas transmission pipe network, chemical pipeline heat preservation engineering petroleum, chemical industry, central heating network, central air conditioning ventilation pipe, municipal engineering, etc. High temperature prefabricated direct buried insulation pipe is a kind of direct buried prefabricated insulation pipe with good insulation performance, safety and reliability, and low project cost. It effectively solves the problems of heat preservation, sliding lubrication and water-proof at the pipe end of the prefabricated directly buried heat preservation pipe used for the high-temperature heat transmission of 130 ℃ - 600 ℃ in the urban central heating. The high-temperature prefabricated direct buried insulation pipe not only has the advanced technology and practical performance which is difficult to compare with the traditional trench and overhead laying pipe, but also has significant social and economic benefits, and is also a powerful measure for heating and energy saving.

 

 

High temperature prefabricated directly buried heat preservation pipe adopts directly buried heat supply pipe technology, which marks that the development of China's heat supply pipe technology has entered a new starting point. The prefabricated directly buried thermal insulation pipeline has the advantages of high-efficiency thermal insulation, waterproof, anticorrosion, heat insulation, sound insulation, fire resistance, cold resistance, corrosion resistance, light capacity, high strength, simple and quick construction, the heat loss can be reduced by more than 40% compared with the ordinary pipeline, the service life can be increased by more than 3-5 times compared with other thermal insulation and anticorrosion materials, and the service life can reach 30-50 years.