The rigid polyurethane foam pipe shell is composed of a protective layer and a thermal insulation layer, wherein the thermal insulation layer is made of polyurethane rigid foam material. The thermal conductivity of polyurethane rigid foam material is very small, only 0.016-0.024w/m k. It is superior to traditional pipes and has remarkable energy-saving effect. The product can be directly buried in the underground antifreeze layer, with a wide range of temperatures, ranging from - 196 to+120 ℃. The product is waterproof, anti-corrosion, resistant to various liquids and gases, flame retardant, anti-aging, and has a service life of 30 years. Therefore, the product is widely used in the engineering field of heating and cooling.
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