What is the new use of new polyurethane insulation pipes? Dacheng Xiangdong Insulation Refractory Material Factory 13473696600 15731614448
What is the new use of new polyurethane insulation pipes? Dacheng Xiangdong Insulation Refractory Material Factory 13473696600 15731614448
Generally, polyurethane insulation pipes, prefabricated insulation pipes, and the like are often made of high-density polyethylene materials, and it is because of this material that the direct-buried insulation pipes have high mechanical strength and excellent corrosion resistance, and It can protect the pipe from transportation, installation and use, etc. without being affected by other factors. Moreover, with the continuous innovation of science and technology and the development of the economy, the direct buried insulation pipe will also find a new way out in innovation.
The direct-buried polyurethane insulation pipe is divided into two types according to the different insulation materials: the first type of polyurethane insulation pipe, the direct-buried insulation pipe adopts composite insulation material, and the structure is the heat insulation layer and the heat insulation layer and polyethylene which are closely attached to the steel pipe. The polyurethane foam insulation layer between the outer sleeves is composed of a composite layer. Since the polyurethane foam can generate sufficient pressure on the hot layer and the outer casing to ensure the integrity of the composite pipe, the composite heat preservation pipe can be used for direct burial laying, and the composite direct buried heat preservation pipe is resistant to temperature. +300 ° C.
The second type uses a modified urethane as a thermal insulation layer. This hard foam is similar to a rigid polyurethane foam. The completely closed uniform cell and the thermal conductivity of the foaming agent form the excellent thermal insulation properties of the hard foam. The thermal conductivity of the direct buried thermal insulation pipe is less than 0.023W/mk, the tensile strength of the prefabricated thermal insulation pipe is greater than 200Kpa, the closed cell ratio of the polyurethane thermal insulation pipe is greater than 97%, and the thermal weight loss of the direct buried thermal insulation pipe is less than 2% when the temperature is 150°C, and the thermal deformation is less than 1 %, in line with ASTM standards, suitable for conveying heat medium not more than 150 °C. This kind of heat preservation tube is also divided into two series according to the thickness of the insulation layer. It is the same as ordinary insulation tube and can be suitable for different users.
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Brass Deep Drawing Parts,Wear Bowl Liner,Deep Drawing Bogie,Center Wear Bowl Liner
JIANGSU TONGDE INTERNATIONAL TRADE CO.LTD. , https://www.jstongdetrade.com