Polyurethane pipe

polyethylene (PE)protectionheating

4 inch Spraying and winding pre-insulated pipe Structure ①Service pipe ②Polyurethane insulation layer ③Polyethylene casing pipe Application Range： product application：Heating supply,cooling supply, Anti-corrosion in the field of crude oil delivery, insulation pipeline engineering. medium temperature：≤120℃（Accidental peak＜140℃）。 medium pressure：≤2.5MPa。 laying mode：It is mainly used for direct laying, as well as for trench or overhead laying pipeline. Standard GB/T3461 1-2017 Product advantages 1、The mechanical properties of the outer protection pipe are improved. 2、The thickness of the outer protection pipe is reduced. 3、the water absorption of the insulation layer is reduced, 4、The percentage of close area of the insulation layer is improved. 5、The axis eccentricity of insulation pipe is reduced. 6、The uniformity of insulation layer density is improved. 7、The compression strength of the insulation layer is improved. 8、The thermal conductivity of the insulation layer is reduced and the energy loss is reduced. Production range：DN500mm～DN1600mm Classic case 1.Central heating supply: Weifang annual economic zone high temperature hot water pipe project, spray winding pre-insulated directly buried pipe project.