Sep 19, 2025 Gadewch neges

Polypropylen 3-haen (3lpp) pibell llinell wedi'i gorchuddio

Pibell ddur wedi'i gorchuddio â 3lpe‌, neu ‌Tri - Haen Pibell Ddur wedi'i Gorchuddio Polyethylen‌, yn fath o gyrydiad - piblinell gwrthsefyll a ddefnyddir yn helaeth mewn diwydiannau fel olew, nwy naturiol, peirianneg gemegol, a chyflenwad dŵr.

 

Cymhwyso cotio:

Paratoi arwyneb y bibell trwy lanhau tywod (Sspc - sp10/nace no.2/iso 8501-1 sa 2 1/2/sis 05 59 00)

Yn dilyn gwresogi pibellau, rhaid rhoi powdr epocsi ymasiad

Rhaid rhoi glud allwthiol dros y bibell.

Yn olaf, rhaid rhoi haen polypropylen allwthiol (MDPP neu HDPP) dros yr haen gludiog.

Mae cyfanswm trwch cotio yn gyffredinol <3.0 mm ar gyfer pibell dia <24 "a 3.3 mm ar gyfer pibell dia 32" ac uwch)

 

Image result for Three Layer Poly Ethylene/ Propylene (3LPE/ 3LPP) coating 3LPE/ 3LPP coating system is a multilayer coating composed of three functional components: a high performance fusion bonded epoxy (FBE), followed by a copolymer adhesive and an outer layer of Medium Density Polyethylene (MDPE) or High Density Polyethylene (HDPE), which provides protection against external corrosion. The codes and standards for 3LPE are ISO 21809-1, DIN 30670 or CAN/CSA Z245.21. Fusion Bonded Epoxy (FBE): First layer of FBE shall be 150 microns thick. Adhesive: Second layer of extruded co-polymer adhesive, 200 microns thick. Polyethylene (MDPE/HDPE): Third layer of extruded polyethylene (MDPE/HDPE) or polypropylene (MDPP/HDPP), 1.6 – 2.95 mm thick. Application of Coating: Surface preparation of pipe by blast cleaning, subsequent to pipe heating fusion epoxy powder shall be applied and after that extruded adhesive shall be applied over the pipe. Finally extruded polyethylene (MDPE or HDPE) layer shall be applied over the adhesive layer. Total coating thickness is generally < 3.0 mm for pipe dia < 24

Cysylltwch â ni amPibell ddur cotio 3LPPpipes@gneetube.com

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