PEX трубы

Usingtow-layercompositematerials: Innerlayermaterialissilicanecrosslinkedpolyethylenewhichcoloriswhite,andhaspastthroughthedrinkingwaterstandards,andgreenenvironment,hasthecapacityofheat-resistanceforalongtimeandagingresistancewithinnocuityaswellascorrosionresistance; Outerlayermixwithpolyethylene,cartonblackandoxidationinhibitor,hastheexcellentcapacityofultravioletradiationresistance,Comparedwithcurrentcommonmetalpipes,itismoreheat-preservationandenergy-saving.Therefore,itwillbeanewtypeofpipewithbenefittoenvironmentalprotection. Anti-UVLayer:Thecarbonblackcontentshouldbenolessthan2.5%inconformitywiththenationalconcernedstipulations. Features: Nodewtall,noincrustation Yieldingness Longserivelifeof50years Neverrusting Anti-corrosion Anti-ultraviolet&Oxygenbarrier Anti-aging,innocuitysanitation EnvironmentalPerformance Variouscolorsareavailable Energyconserationreductionlosses LowcoefficientofthermalconductivityWallofpipesmoothandlittleresistance High-impactstrength,NeverbreedbacteriaNotfragile,fixingbriefness,steadycapability Lightweight,convenientremoval Highandlowtemperatureresistant,canbeusedunder-70°C 110°C Canbeusedat: 1.Civilbuildingcoldandhotwaterpipelinesystem 2.Food,chemical,electronicsandotherindustrialpipenetwork 3.Groundradiatorheatingpipelinesystem 4.Factoryaircompressedpipenetwork 5.AgricultureandGardenirrigationsystem 6.Solarwaterheatermostsuitablepipe 7.Drinkingpurewaterpipelinesystem 8.Centralairconditionerpipelinesystem 9.Rainwaterpipenetwork 10.Swimmingpoolpipenetwork Characteristic: Item TechnicalSpecifications LengthwaysRecoveryRatio(120°C,1hour)% ≤3 DegreeofCrossLinking(%) ≥65 Density(g/cm³) ≥0.94 Pressurethatcanbeused 12.5kgf/cm²(bar) Tensile-strength(N/mm) 220°C 19 26 100°C 9 13 Breakingelongation(%) 20°C 350 550 100°C 500 700 Thelongusingtemperature(°C) -70 +95 Coefficientoflinearexpansion(m/mºk) 20°C 1.4×10-4 100°C 2.05×10-4 Vicatsofteningpoint(°C) 133 Heatconductivitycoefficient(W/mºk) 0.35 UVlayer Notlessthan2.5% Sanitarystandards InnerpipeismeettheGB/T17219requirments SustainedHydraulicPressure 20°C,1h,HydrostaticTension:12Mpa Noleackage,Nobroken 95°C,1h,HydrostaticTension:4.8Mpa Noleackage,Nobroken 95°C,22h,HydrostaticTension:4.7Mpa Noleackage,Nobroken 95°C,165h,HydrostaticTension:4.6Mpa Noleackage,Nobroken 95°C,1000h,HydrostaticTension:4.4Mpa Noleackage,Nobroken