Polyurethane direct buried insulation pipe is an ideal product for central heating because of its good quality and low price. This phenomenon generally occurs in spring and summer or at noon construction, because the temperature is too jumping. But use cold water or dark night to cool naturally outside to prevent direct sunlight. Have the level of sales personnel, customers have inquiry can call consultation or factory investigation.

　　The insulating pipe directly buried heat insulation pipe, also known as "tube in tube", consists of two steps, consisting of high density polyethylene curing layer, polyurethane rigid foam pipe and steel pipe.

　　The thermal insulation material is 60kg/m3 to 80kg/m3 rigid polyurethane foam, the space between the filled steel pipe and the casing has certain bond strength, so that the steel tube, outer tube and insulation material form a whole. The thermal insulation steel pipe foam has excellent mechanical insulation and thermal insulation function. It can be modified at 120 C or combined with other insulation materials, and it can withstand 180 degrees centigrade. The thermal insulation material is 60kg/m3 to 80kg/m3 rigid polyurethane foam, the space between the filled steel pipe and the casing has certain bond strength, so that the steel tube, outer tube and insulation material form a whole. The insulation pipe foam has excellent mechanical insulation and thermal insulation function, usually 120 degrees C can be modified or combined with other thermal insulation data.

　　1. Anti corrosion coating: maintain the outer steel pipe to prevent corrosion and extend the service life of steel pipe.

　　2. External protection steel pipe: protect the insulation layer from groundwater corrosion, support the operation pipeline and bear certain external load to ensure the normal operation of the operation pipeline.

　　3. Polyurethane foam layer: ensure that the medium temperature and the surface temperature of the outer tube are kept normal.

　　4. isolation reflective layer: ensure that the organic foam data do not enter the inorganic rigid high temperature layer, and reflect some heat in the high temperature resistant layer.

　　5. inorganic hard insulation: high temperature, ensure the interface temperature between the organic insulation layer, ensure that the foam is not carbonized.

　　6. Drag reduction layer: ensure that the working steel pipe expands when heated, shrinks when cooled and moves freely.

　　7. Operation of steel pipe: ensure the normal operation of transmission medium.

　　The above is the relevant content introduced by Jinan heat preservation pipe company. If you want to know more, please visit the website: https://www.sdhpgy.com