Prefabricated directly buried insulation pipe (produced by "pipe-in-pipe" method)

This product is suitable for conveying medium temperature within the range of -30℃ ~ 140℃, underground directly buried pipeline, suitable for urban central heating, residential heating pipe network. Adopts the "pipe in pipe" production process to produce the high density polyethylene outer protective pipe polyurethane foam plastic directly buried prefabricated insulation pipe, the product quality meets the standard requirements. Steel pipe after rust removal, anticorrosion treatment; Polyurethane foam insulation layer, good thermal insulation effect, transport 80℃ hot water temperature drop per km <1℃; High density polyethylene outer protective pipe, made of high quality high density polyethylene, has high mechanical strength, good weather resistance, superior sealing performance, can be used in the permafrost and high water level geological conditions for a long time.

"High density polyethylene outer protective pipe polyurethane foam prefabricated directly buried insulation pipe" CJ/T114-2000

Polyethylene outer guard tube

Polyurethane foam

Finished product pipe