Buried hot water pipe insulation prices, polyurethane insulation pipe buried hot water pipe insulation prefabricated buried - species classification protective shell material division (1) high-density polyethylene plastic (commonly known as the jacket) protective shell. (2) glass fiber reinforced unsaturated polyester resin plastic (commonly known as FRP) protective shell. (3) the use of protective shell of other materials, such as spiral welded steel pipe, straight seam steel pipes, bellows. Polyurethane insulation thermal conductivity coefficient: λ = 0.013-0.03kcal / m h oC heating pipe insulation, much lower than other pipe insulation material used in the past, the insulation effect increased by 4 to 9 times??. Again its very low water absorption pipe insulation jacket, about 0.2kg / m2. The reason is due to the low water absorption of the polyurethane foam closed cell ratio as high as 92%. Low thermal conductivity and low water absorption, plus insulation and outer waterproof good high density polyethylene or fiberglass protective shell, has changed the traditional trench laying heating pipes "wearing wet jacket," the state of the steam pipe insulation, greatly reducing the supply overall heat loss heat pipes, thermal network heat loss of 2%, less than 10% of international standards. Heating pipe insulation, pipe insulation Buried Kodak (certified), Feicheng pipe insulation provided by the Building Materials Co., Ltd. Weifang Kodak. Weifang Kodak Building Materials Co. (www.wfkdjc.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Kodak leadership with the staff warmly welcome all inquiries negotiations to create a better future for Kodak.