Seamless pipe insulation prefabricated buried

Prefabricated buried pipe insulation production details seamless polyurethane insulation category: 1. In accordance with its transmission medium temperature can be divided into: normal polyurethane buried pipe insulation, high temperature polyurethane buried pipe insulation, cryogenic polyurethane buried pipe insulation; 2. can be divided according to different outer sheath: FRP outer sheath polyurethane buried pipe insulation, high-density polyethylene outer sheath polyurethane buried pipe insulation, steel outer sheath of polyurethane insulation Buried pipes and other buried insulating outer sheath tube; 3. different transmission media there are many: such as water supply prefabricated polyurethane insulation, high temperature polyurethane insulation, vapor transport using polyurethane composite prefabricated buried steam pipe insulation, the use of oil buried rigid polyurethane Foam anti-corrosion pipe insulation and so on. There are many called as polyurethane pipe, polyurethane prefabricated pipe, buried prefabricated polyurethane tube, polyurethane jacket pipe, polyurethane foam insulation tubes and so on. Polyurethane insulation applications: polyurethane insulation for thermal indoor and outdoor pipes, central heating pipes, central air conditioning ducts, chemical, pharmaceutical and other industrial pipes, cold project. Overview of polyurethane foam insulation polyurethane synthetic materials since the thirties was born, has been used as an excellent insulation material and rapid development, more and more extensive range of applications, but also because of its simple construction, energy-saving effect is remarkable preservative but it is largely used for various heating, cooling, oil, gasoline and other transport pipeline. Large numbers for a variety of heating, cooling, oil, gasoline and other transport pipeline. Buried polyurethane insulation pipe insulation effect: Polyurethane insulation effect compare with other materials. 2, the construction cost low buried pipe insulation compared to traditional pipeline trench, saving the cost of the entire trench and its subsidiaries support means. Direct buried laying lower cost than traditional perlite insulation trench laying works. Useful life of 60 years, information on domestic life of 16-year wet aging, thermal aging life of 60 years, some general information on heat pipes as the cause of the common pipeline, taking into account the role of internal corrosion, which also happened in the age 15 year or more, some of the information, the role of buried life of 50 years, laying empty frame of 20 years. Although statistics vary, but the buried pipeline corrosion insulation than traditional pipeline trench, life is much higher. Its minimum service life of 15 years. Buried pipe trench dimensions should meet the requirements shown below: 1, local ditch at the bottom of the upper bearing capacity ≤ 60KPa, the trench bottom should be padded plain concrete layer. 2, C15 plain concrete should be compacted soil layer at the bottom, and then pouring concrete, concrete floor surface should be smooth. When the soil is wet bottom collapsible soil, should be replaced (about depth 1.0m) and compaction. 3, trench width and depth of a trench joints should increase over non-joint 250 ~ 300mm. 4, with the bellows location, soil bellows bottom elevation should be determined according to the size of the actual arrival of the compensator. 5, the ditch along the upper slope of the line should be consistent with the slope of the pipeline. 6, around the buried pipe 100mm solid throughout with fine sand. Sand diameter should be less than 8mm, can not fit in the sand clay, brick, stone, iron and other debris. 7, when the tube is located in the truth slag, debris and other corrosive soil area, backfill should be replaced with less corrosive soils and layered foundation. 8, the trench must be good drainage work, it can be drains, sump pumps excluded.