Qingyun Hongsheng Machinery Parts Co., Ltd. is one of the most reliable manufacturers and suppliers of polyurethane pipeline for buried heating in China. We warmly welcome you to wholesale high quality polyurethane pipeline for buried heating at low price from our factory. If you have any enquiry about quotation, please feel free to email us.
Polyurethane pipeline for buried heating
High temperature prefabricated directly buried insulation pipe is composed of steel pipe, FRP inner sheath, FRP shell, which is characterized by: also includes high temperature insulation layer, lubrication layer, elastic seal. The utility model effectively solves the problems of insulation, sliding lubrication and waterproof of prefabricated direct buried insulation pipe for 130℃ -600℃ high temperature heat transfer in central towns. High temperature prefabricated directly buried insulation pipe is mainly composed of four parts.(1) Working steel pipe: according to the technical requirements of conveying medium, use seamless steel pipe, seamless steel pipe, double-sided buried arc spiral welded steel pipe.(2) Insulation layer: using rigid polyurethane foam plastic.(3) protective shell: using high-density polyethylene or FRP.(4) leakage alarm line: manufacturing high temperature prefabricated straight buried insulation pipe, near the steel pipe insulation layer, buried alarm line, once pipe somewhere leakage, through the alarm line conduction, can alarm on the special detection instrument and shows the exact location and the degree of leakage, in order to inform maintenance personnel quickly handle leaking pipe section, ensure the safe operation of heat network. The temperature layer forms a solid whole among the three layers. Polyurethane directly buried insulation pipe foam has good mechanical properties and thermal properties, usually temperature resistance 120 through modification or other combination with heat insulation materials 180.
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