The polyurethane insulation layer is freely foamed and formed, with the direction of the foam cells perpendicular to the axial direction of the pipe, improving the compressive strength of the insulation layer.
Categories:Spray-wound insulation pipe
Implementation standards |
| Innerpipematerial | ubmergedarcweldedspiralsteelpipe,seamlesssteelpipe,etc. |
| Designpressure | P≤1.6MPa |
| Conveyingmedium | Hotwater,coldwater,etc. |
| Designtemperature | T≤140℃ |
| Implementationstandard | GB/T34611-2017 |
| Polyurethanedensity | ≥60kg/m3 |
| Servicelife | Greater than or equal to 30 years |
| Outerprotectivepipedensity | ≥940kg/m3and≤960kg/m3 |
Product diagram |
Product advantages |
(1)Thepolyurethanesprayingprocessresultsinbetteruniformityofthepolyurethaneinsulationlayerdensity,betterstabilityofthethermalconductivitycoefficient,higherclosed-cellrate,lowerwaterabsorption,andsmalleraxialeccentricityoftheinsulationpipe;
(2)Thepolyurethaneinsulationlayerisformedbyfreefoaming,withthedirectionofbubbleinitiationperpendiculartotheaxialdirectionofthepipe,improvingthecompressivestrengthoftheinsulationlayer.
(3)Thebondingperformancebetweenthepolyurethaneinsulationlayerandtheworkingsteelpipeisstronger.(Thepolyurethanerawmaterialissprayedinliquidformontothesurfaceofthesteelpipe,thenreactsandforms.Duetothehighreactivityofthesprayedpolyurethanerawmaterial,itsbondingforceissuperiortotraditionalprocesses.)
(4)Duetothespraymolding,thesurfaceroughnessofthepolyurethanefoamishigher,andthebondingperformancewiththeouterprotectivepolyethylenesheetisstronger.
(5)Thepolyethyleneouterprotectivelayer,whileensuringitsperformance,isthinnerandmoreuniform,whichcansavecosts.
(6)Thepolyethyleneouterprotectivelayerisformedbycircumferentialwinding.Affectedbyprocessstretching,itsmechanicalperformanceindicatorssuchascircumferentialelongationandtensilestrengtharesignificantlyimproved.
Product specifications |
| Worktubeengineeringdiameter （DN）mm |
Insulationthickness mm |
Outerprotectivelayerouterdiameter （Dc）mm |
Minimum wall thickness of outer protective layer. （emin）mm |
| 300 | 30~50 | 393~433 | 4.0 |
| 350 | 30~50 | 445~485 | 4.0 |
| 400 | 30~60 | 494~554 | 4.0 |
| 450 | 30~60 | 547~607 | 4.5 |
| 500 | 30~60 | 598~658 | 4.5 |
| 600 | 30~60 | 700~760 | 5.0 |
| 700 | 30~60 | 790~850 | 5.0 |
| 800 | 30~60 | 891~951 | 5.5 |
| 900 | 30~60 | 992~1052 | 6.0 |
| 1000 | 30~60 | 1093~1153 | 6.5 |
| 1100 | 30~60 | 1194~1254 | 7.0 |
| 1200 | 40~100 | 1316~1436 | 8.0 |
| 1400 | 50~120 | 1538~1678 | 9.0 |
| 1600 | 60~140 | 1760~1920 | 10.0 |
| Note:Otherouterdiametersoftheouterprotectivelayercanbeselectedaccordingtodesignrequirements, buttheminimumwallthicknessoftheouterprotectivelayerforsteelpipesofthesamediametershouldbethesame. |
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●Customproductioncanbecarriedoutaccordingtouserrequirements;optionalanti-leakageearlywarningsystemcanautomaticallydetectpipelinenetworkleakagefaults,automaticallyalarm,andhashighsafetystability.
●Thedesignandcalculationofproductspecificationsneedtoconsiderspecificapplicationconditions,involvingmoreparameters.PleasecontactYuanfengCompany.
Productaliases:Sprayinsulationpipe,spraywindinginsulationpipe,polyurethanesprayinsulationpipe,polyurethanespraypolyethylenewindinginsulationpipe,polyethylenewindinginsulationpipe,spraywindingpolyurethaneinsulationpipe,rigidpolyurethanespraypolyethylenewindingprefabricateddirect-buriedinsulationpipe,etc.
Shipment pictures |
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