Pipeline Polyurethane pro sepulti calefactio
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 {{IX}} (III) tutela testa: usura summus density polyethylene vel frp {{{}} (IV tibiarum prefabricated recto sepulta, per tortor tibiarum et tibia, per buried tibia linea, cum tibia, in speciali, ut tincidunt, ut tibia, per timeat et tincidunt, ut exactam in ordine Ut certiorem sustentationem curatores cito tractamus stillante pipe sectione, ut tutum operationem caloris nwork {{}} et temperatus est bonum mechanica proprietatibus et thermalia {{{}} Mechanica, {{{{}}}}}
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