{"id":3746,"date":"2026-04-15T16:22:45","date_gmt":"2026-04-15T08:22:45","guid":{"rendered":"https:\/\/alllandpipes.com\/?post_type=product&#038;p=3746"},"modified":"2026-08-14T15:47:08","modified_gmt":"2026-08-14T07:47:08","slug":"3lpe-steel-pipe","status":"publish","type":"product","link":"https:\/\/alllandpipes.com\/fr\/product\/allland-steel-pipe\/3lpe-steel-pipe.html","title":{"rendered":"TUBE EN ACIER 3LPE"},"content":{"rendered":"<h2><strong>description<\/strong><\/h2>\n<p><strong>Tuyau en acier 3LPE <\/strong>\u00a0Il s'agit d'une structure anticorrosion sp\u00e9ciale destin\u00e9e aux canalisations enterr\u00e9es, compos\u00e9e de trois couches de mat\u00e9riaux appliqu\u00e9es successivement sur la paroi ext\u00e9rieure du tuyau : la couche inf\u00e9rieure est constitu\u00e9e de poudre \u00e9poxy appliqu\u00e9e par fusion (FBE), qui offre une excellente adh\u00e9rence et une protection cathodique par d\u00e9capage ; la couche interm\u00e9diaire est constitu\u00e9e d\u2019un adh\u00e9sif copolym\u00e8re, qui assure l\u2019adh\u00e9rence entre les couches ; et la couche la plus externe est en poly\u00e9thyl\u00e8ne haute densit\u00e9 (PEHD) extrud\u00e9, qui offre une excellente protection m\u00e9canique, une bonne r\u00e9sistance aux chocs et une protection contre les contraintes dues au sol. Cette structure composite am\u00e9liore consid\u00e9rablement la r\u00e9sistance \u00e0 long terme \u00e0 la corrosion du tuyau dans des environnements difficiles.<\/p>\n<ul>\n<li><strong>Appr\u00eat \u00e9poxy li\u00e9 par fusion (FBE) (\u2265 80 \u03bcm) : <\/strong>Assure la r\u00e9sistance au d\u00e9collement cathodique et l'adh\u00e9rence.<\/li>\n<li><strong>Couche adh\u00e9sive polym\u00e8re (170\u2013250 \u03bcm) : <\/strong>Lie le FBE au poly\u00e9thyl\u00e8ne ext\u00e9rieur.<\/li>\n<li><strong>Couche de finition en poly\u00e9thyl\u00e8ne haute densit\u00e9 (PEHD)<\/strong>\u00a0(1,5\u20133,0 mm) : Assure une protection m\u00e9canique et constitue une barri\u00e8re contre l'humidit\u00e9.<\/li>\n<\/ul>\n<p>Con\u00e7u pour les environnements extr\u00eames (par exemple, en milieu sous-marin, dans des sols acides ou \u00e0 forte salinit\u00e9), il prolonge la dur\u00e9e de vie des canalisations jusqu'\u00e0 \u2265 50 ans, avec un entretien quasi nul. Largement utilis\u00e9 dans le transport de p\u00e9trole et de gaz, les r\u00e9seaux d'approvisionnement en eau et l'industrie chimique.<\/p>\n<p><strong>Nom du produit : <\/strong>Tuyau rev\u00eatu de 3LPE, tuyau anticorrosion 3LPE, tuyau en PE \u00e0 triple couche<\/p>\n<h3><strong>Sp\u00e9cifications<\/strong><strong>:<\/strong><\/h3>\n<p>Diam\u00e8tre ext\u00e9rieur : 60mm-3000mm<\/p>\n<p>\u00c9paisseur de paroi : 4,5 \u00e0 50 mm<\/p>\n<p>Longueur : 6 m \/ 12 m \/ 12,5 m \/ 18 m<\/p>\n<h3><strong>Standard<\/strong><strong>\u00a0et la qualit\u00e9 de l'acier :<\/strong><\/h3>\n<p>API SPEC 5L : Gr.B, X42, X46, X52, X56, X60, X65, X70, X80 (PSL1\/PSL2)<\/p>\n<p>ASTM A53\/A106\/A252\/A500 : Gr.A, Gr.B, Gr.C, Gr.1, Gr.2, Gr.3<\/p>\n<p>EN 10217 \/ <a title=\"EN 10219\" href=\"https:\/\/alllandpipes.com\/standards\/en-10219.html\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"379\">EN 10219<\/a>: S235, S275, S355, L245, L290, L360, L415, L450, L485<\/p>\n<p>GB\/T 9711 : L245, L290, L360, L415, L450, L485<\/p>\n<h3><strong>Normes relatives aux rev\u00eatements :<\/strong><\/h3>\n<p>GB\/T 23257, SY\/T 0413, DIN 30670, ISO 21809-1, CSA Z245.21, NFA 49-710<\/p>\n<p><strong>Fin :<\/strong>\u00a0Extr\u00e9mit\u00e9s biseaut\u00e9es \/ Extr\u00e9mit\u00e9s lisses.<\/p>\n<h3><strong>Traitement de surface<\/strong><\/h3>\n<ul>\n<li><strong>Couche d'adh\u00e9rence : <\/strong>Il s'agit avant tout d'un appr\u00eat \u00e9poxy.<\/li>\n<li><strong>Couche de protection contre la corrosion : <\/strong>\u00c9poxy li\u00e9 par fusion (FBE).<\/li>\n<li><strong>Couche de protection contre l'abrasion et les agressions ext\u00e9rieures : <\/strong>Poly\u00e9thyl\u00e8ne (PE).<\/li>\n<\/ul>\n<p>Parmi les autres traitements de surface disponibles, on trouve l'acier nu, la peinture noire, le vernis et la galvanisation.<\/p>\n<h2><strong>Sp\u00e9cifications<\/strong><\/h2>\n<figure>\n<table>\n<tbody>\n<tr>\n<td width=\"130\"><strong>Cat\u00e9gorie<\/strong><\/td>\n<td width=\"130\"><strong>Param\u00e8tres<\/strong><\/td>\n<td width=\"130\"><strong><a title=\"Tube d&#039;acier FBE\" href=\"https:\/\/alllandpipes.com\/product\/allland-steel-pipe\/fbe-steel-pipe.html\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"401\">Tube d'acier FBE<\/a><\/strong><\/td>\n<td width=\"130\"><strong>Tube d'acier 3PE<\/strong><\/td>\n<td width=\"130\"><strong>Tube d'acier 3PP<\/strong><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\" width=\"130\"><strong>Sp\u00e9cifications de base<\/strong><\/td>\n<td width=\"130\">OD (mm\/in)<\/td>\n<td width=\"130\">60-3000<br \/>\n(2\u2033-118\u2033)<\/td>\n<td width=\"130\">60-3000<br \/>\n(2\u2033-118\u2033)<\/td>\n<td width=\"130\">60-3000<br \/>\n(2\u2033-118\u2033)<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">\u00c9paisseur de la paroi (mm)<\/td>\n<td width=\"130\">5.0-40<\/td>\n<td width=\"130\">6.0-45<\/td>\n<td width=\"130\">6.0-45<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Longueur (m\/pied)<\/td>\n<td width=\"130\">6-18<br \/>\n(20\u2032-60\u2032)<\/td>\n<td width=\"130\">6-18<br \/>\n(20\u2032-60\u2032)<\/td>\n<td width=\"130\">6-18<br \/>\n(20\u2032-60\u2032)<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Couleur du rev\u00eatement<\/td>\n<td width=\"130\">Vert\/Beige\/Personnalis\u00e9<\/td>\n<td width=\"130\">Noir (Std)<\/td>\n<td width=\"130\">Jaune\/personnalis\u00e9<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Temp. Plage de temp\u00e9rature (\u00b0C)<\/td>\n<td width=\"130\">-40~100<br \/>\n(150 \u00b0C DL*)<\/td>\n<td width=\"130\">-40~80<\/td>\n<td width=\"130\">-40~140<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\" width=\"130\"><strong>Structure du rev\u00eatement<\/strong><\/td>\n<td width=\"130\">Couche de base<\/td>\n<td width=\"130\">Primaire FBE<\/td>\n<td width=\"130\">Primaire FBE<\/td>\n<td width=\"130\">Primaire FBE<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Couche interm\u00e9diaire<\/td>\n<td width=\"130\">N\/A<\/td>\n<td width=\"130\">Adh\u00e9sif copolym\u00e8re<\/td>\n<td width=\"130\">Adh\u00e9sif copolym\u00e8re<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Couche sup\u00e9rieure<\/td>\n<td width=\"130\">N\/A<\/td>\n<td width=\"130\">Poly\u00e9thyl\u00e8ne (2-4mm)<\/td>\n<td width=\"130\">Polypropyl\u00e8ne (2-4mm)<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\" width=\"130\"><strong>Certifications<\/strong><\/td>\n<td width=\"130\">Normes internationales<\/td>\n<td width=\"130\"><a title=\"ISO 21809\" href=\"https:\/\/alllandpipes.com\/standards\/iso-21809.html\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"513\">ISO 21809<\/a>-2<br \/>\nCSA Z245.20<\/td>\n<td width=\"130\">ISO 21809-1<br \/>\n<a title=\"DIN 30670\" href=\"https:\/\/alllandpipes.com\/standards\/din-30670.html\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"536\">DIN 30670<\/a><\/td>\n<td width=\"130\">ISO 21809-3<br \/>\nGB\/T 23257<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Certificats sp\u00e9ciaux<\/td>\n<td width=\"130\">NSF\/61 (eau potable)<\/td>\n<td width=\"130\">\u2013<\/td>\n<td width=\"130\">\u2013<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\" width=\"130\"><strong>Performance<\/strong><\/td>\n<td width=\"130\">Compatibilit\u00e9 cathodique<\/td>\n<td width=\"130\">Excellent<\/td>\n<td width=\"130\">Bon<\/td>\n<td width=\"130\">Excellent<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">R\u00e9sistance \u00e0 l'abrasion<\/td>\n<td width=\"130\">Mod\u00e9r\u00e9<\/td>\n<td width=\"130\">Bon<\/td>\n<td width=\"130\">Sup\u00e9rieure<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">R\u00e9sistance chimique<\/td>\n<td width=\"130\">Bon<\/td>\n<td width=\"130\">Mod\u00e9r\u00e9<\/td>\n<td width=\"130\">Sup\u00e9rieure<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\" width=\"130\"><strong>Emballage<\/strong><\/td>\n<td width=\"130\">Protecteurs d'extr\u00e9mit\u00e9<\/td>\n<td width=\"130\">Embouts biseaut\u00e9s\/plains<\/td>\n<td width=\"130\">Identique \u00e0 la FBE<\/td>\n<td width=\"130\">Identique \u00e0 la FBE<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Rembourrage intercalaire<\/td>\n<td width=\"130\">Entretoises sp\u00e9ciales<\/td>\n<td width=\"130\">Entretoises renforc\u00e9es<\/td>\n<td width=\"130\">Entretoises renforc\u00e9es<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Hauteur max. Hauteur de la pile<\/td>\n<td width=\"130\">3.5m<\/td>\n<td width=\"130\">3.0m<\/td>\n<td width=\"130\">3.0m<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\" width=\"130\"><strong>Conditions commerciales<\/strong><\/td>\n<td width=\"130\">D\u00e9lai de livraison<\/td>\n<td width=\"130\">30-60 jours<\/td>\n<td width=\"130\">45-75 jours<\/td>\n<td width=\"130\">45-75 jours<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Conditions de paiement<\/td>\n<td width=\"130\">D\u00e9p\u00f4t 30%<br \/>\n70% Avant exp\u00e9dition<\/td>\n<td width=\"130\">Identique \u00e0 la FBE<\/td>\n<td width=\"130\">Identique \u00e0 la FBE<\/td>\n<\/tr>\n<tr>\n<td width=\"130\">Chargement d'un conteneur 20 pieds GP<\/td>\n<td width=\"130\">28 MT<\/td>\n<td width=\"130\">25 MT<\/td>\n<td width=\"130\">25 MT<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2><strong>processus de production<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process.jpg\" sizes=\"auto, (max-width: 1110px) 100vw, 1110px\" srcset=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process.jpg 1110w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-300x284.jpg 300w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-1024x969.jpg 1024w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-768x726.jpg 768w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-600x568.jpg 600w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-1x1.jpg 1w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/06\/production-process-10x10.jpg 10w\" alt=\"processus de production\" width=\"1110\" height=\"1050\" \/><\/p>\n<h2><strong>3LPE Steel Pipe Manufacturing<\/strong><\/h2>\n<h3><strong><b>Detailed 3LPE Coating Steel Pipe Manufacturing Process<\/b><\/strong><\/h3>\n<p><strong><b>1.<\/b><\/strong><strong><b>Pre-heating &amp; Surface Cleaning:<\/b><\/strong>\u00a0Substrate steel pipes (LSAW, SSAW, or ERW) are pre-heated using induction coils or gas burners to remove surface moisture, oil, and organic contaminants.<\/p>\n<p><strong><b>2.<\/b><\/strong><strong><b>Centrifugal Shot Blasting:<\/b><\/strong>\u00a0Pipe surfaces undergo high-speed centrifugal shot blasting to reach Sa 2.5 cleanliness (ISO 8501-1), creating a controlled anchor profile (50\u201390 \u00b5m) for maximum coating adhesion.<\/p>\n<p><strong><b>3.<\/b><\/strong><strong><b>MF Induction Heating:<\/b><\/strong>\u00a0The cleaned pipe is rapidly heated via medium-frequency (MF) induction coils to the required application temperature (typically 190\u00b0C\u2013220\u00b0C).<\/p>\n<p><strong><b>4.<\/b><\/strong><strong><b>FBE Primer Application:<\/b><\/strong>\u00a0Fusion-Bonded Epoxy (FBE) powder is electrostatically sprayed onto the rotating hot pipe to form the first corrosion-resistant primer layer (\u226580 \u00b5m).<\/p>\n<p><strong><b>5.<\/b><\/strong><strong><b>Adhesive &amp; HDPE Extrusion:<\/b><\/strong>\u00a0While the FBE layer is still molten, polymer adhesive (170\u2013250 \u00b5m) and high-density polyethylene (HDPE, 1.5\u20133.7 mm) are continuously co-extruded and wrapped around the pipe using advanced side-extrusion or cross-head technology.<\/p>\n<p><strong><b>6.<\/b><\/strong><strong><b>Trempe et refroidissement \u00e0 l'eau :<\/b><\/strong>\u00a0The three-layer coated steel pipe is immediately cooled in a long water bath to solidify the polyethylene jacket and lock the chemical bonds.<\/p>\n<p><strong><b>7.<\/b><\/strong><strong><b>High-Voltage Spark (Holiday) Inspection:<\/b><\/strong>\u00a0100% of the 3LPE coated surface passes through inline high-voltage spark testing (typically 25 kV) to verify zero pinholes or dielectric breakdowns.<\/p>\n<p><strong><b>8.<\/b><\/strong><strong><b>End Cutback, Beveling &amp; Marking:<\/b><\/strong>\u00a0Coating is stripped back by 150mm (6&#8243;) at both pipe ends with a clean 30\u00b0 bevel for future field welding, followed by stencil marking and end cap installation.<\/p>\n<h2><strong>application<\/strong><\/h2>\n<ul>\n<li><strong>Transport d'\u00e9nergie : <\/strong>Conduites principales, embranchements et conduites de collecte pour le transport \u00e0 longue distance, \u00e0 terre et sous-marin, de p\u00e9trole et de gaz naturel. R\u00e9seaux urbains de gaz. Ol\u00e9oducs.<\/li>\n<li><strong>Gestion de l'eau et g\u00e9nie civil urbain :<\/strong>\u00a0Projets de d\u00e9rivation et de transport d'eau \u00e0 grande \u00e9chelle (en particulier les sections de franchissement et les zones sujettes \u00e0 la corrosion). Conduites d'entr\u00e9e et de sortie des usines de dessalement d'eau de mer. Conduites principales d'alimentation en eau et d'assainissement des collectivit\u00e9s (soumises \u00e0 des exigences \u00e9lev\u00e9es en mati\u00e8re de r\u00e9sistance \u00e0 la corrosion). Conduites sous pression des centrales hydro\u00e9lectriques.<\/li>\n<li><strong>Applications chimiques et industrielles :<\/strong>\u00a0Conduites de process destin\u00e9es au transport de fluides corrosifs (mati\u00e8res premi\u00e8res chimiques, eaux us\u00e9es, boues, r\u00e9sidus miniers). Conduites de traitement chimique de l'eau. Conduites d'eau de circulation et conduites d'eau d\u00e9min\u00e9ralis\u00e9e des centrales \u00e9lectriques.<\/li>\n<li><strong>Environnements difficiles et projets sp\u00e9ciaux : <\/strong>Sols alcalins \u00e0 forte salinit\u00e9, zones mar\u00e9cageuses, zones de perg\u00e9lisol et zones rocheuses. Projets de forage directionnel horizontal (HDD) et de pose de canalisations par pouss\u00e9e. Conduites sous-marines (n\u00e9cessitant des sp\u00e9cifications renforc\u00e9es ou sup\u00e9rieures).<\/li>\n<li><strong>Applications structurelles : <\/strong>Pieux de plates-formes offshore, pieux de quai et structures de soutien sous-marines pour ponts.<\/li>\n<\/ul>\n<h2><strong>avantages<\/strong><\/h2>\n<ul>\n<li><strong>Protection extr\u00eame contre la corrosion : <\/strong>Ces trois couches agissent de concert pour former une barri\u00e8re solide capable de r\u00e9sister efficacement \u00e0 la corrosion due au sol, \u00e0 l'eau, aux produits chimiques et aux micro-organismes, ce qui prolonge consid\u00e9rablement la dur\u00e9e de vie de la canalisation et r\u00e9duit fortement les besoins en entretien.<\/li>\n<li><strong>Protection physique : <\/strong>La couche ext\u00e9rieure robuste en PEHD offre une r\u00e9sistance sup\u00e9rieure aux chocs, aux rayures, \u00e0 l'abrasion et aux contraintes du sol, prot\u00e9geant ainsi efficacement les canalisations contre les dommages pendant le transport, la pose (notamment \u00e0 travers des rochers) et l'utilisation.<\/li>\n<li><strong>Environnement hostile : <\/strong>Con\u00e7u pour les environnements extr\u00eames tels que les milieux \u00e0 forte salinit\u00e9, les sols gel\u00e9s, les mar\u00e9cages, les zones rocheuses et les fonds marins, il offre des performances stables et fiables.<\/li>\n<li><strong>Excellentes performances : <\/strong>La structure \u00e0 trois couches est solidement li\u00e9e, pr\u00e9sente une forte adh\u00e9rence et ne se d\u00e9colle pas facilement ; la surface du rev\u00eatement est lisse, ce qui r\u00e9duit la r\u00e9sistance au transport ; elle offre une bonne isolation \u00e9lectrique, ce qui r\u00e9duit le recours \u00e0 la protection cathodique.<\/li>\n<li><strong>Rentable : <\/strong>Malgr\u00e9 un investissement initial \u00e9lev\u00e9, sa longue dur\u00e9e de vie et ses faibles co\u00fbts d'entretien garantissent une meilleure rentabilit\u00e9 tout au long du cycle de vie du projet, en particulier pour les infrastructures critiques.<\/li>\n<\/ul>\n<h2><strong>emballage<\/strong><\/h2>\n<p>Le transport des tubes en acier 3LPE doit accorder une attention particuli\u00e8re \u00e0 la pr\u00e9vention et au contr\u00f4le des d\u00e9formations et des dommages caus\u00e9s au rev\u00eatement. Des supports courbes sur mesure sont utilis\u00e9s pour \u00e9viter tout d\u00e9placement, toute collision et toute d\u00e9formation radiale. Le transport maritime est facultatif :<\/p>\n<ul>\n<li><strong>Transport par conteneurs<\/strong>: convient aux courtes distances, aux petites s\u00e9ries, offre une bonne protection ;<\/li>\n<li><strong>Chargement sur le pont d'un vraquier<\/strong>: \u00c9conomique, n\u00e9cessite un arrimage sp\u00e9cifique pour emp\u00eacher tout d\u00e9placement ;<\/li>\n<li><strong>Support de tuyaux<\/strong>: navire sp\u00e9cialement con\u00e7u pour des transports particuliers, offrant une efficacit\u00e9 et une s\u00e9curit\u00e9 optimales, mais dont le co\u00fbt est \u00e9lev\u00e9.<\/li>\n<\/ul>\n<p>Choisissez la solution la plus adapt\u00e9e en fonction de la distance de transport, de la taille des lots, du co\u00fbt et des exigences en mati\u00e8re d'assurance qualit\u00e9 (notamment l'int\u00e9grit\u00e9 du rev\u00eatement).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-scaled.jpg\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" srcset=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-scaled.jpg 2560w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-300x200.jpg 300w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-1024x683.jpg 1024w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-768x512.jpg 768w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-1536x1024.jpg 1536w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-2048x1365.jpg 2048w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-600x400.jpg 600w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-1x1.jpg 1w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/05\/packing-10x7.jpg 10w\" alt=\"emballage\" width=\"2560\" height=\"1707\" \/><\/p>\n<h2><strong>FAQ<\/strong><\/h2>\n<details id=\"e-n-accordion-item-2640\" open=\"\">\n<summary tabindex=\"0\" data-accordion-index=\"1\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-2640\">Q1: What are the three layers in a 3LPE coated steel pipe?<\/summary>\n<p>The 3LPE coating system consists of three functional layers: 1) A bottom layer of Fusion-Bonded Epoxy (FBE, \u226580 \u00b5m) for excellent chemical adhesion and anti-corrosion; 2) A middle copolymer adhesive layer (170\u2013250 \u00b5m) for strong inter-layer bonding; and 3) An outer High-Density Polyethylene (HDPE, 1.5\u20133.7 mm) topcoat providing mechanical protection against impact, soil stress, and abrasion.<\/p>\n<\/details>\n<details id=\"e-n-accordion-item-2641\">\n<summary tabindex=\"-1\" data-accordion-index=\"2\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2641\">Q2: What is the operating temperature limit for 3LPE coated pipes?<\/summary>\n<p>Standard 3LPE coated steel pipes are rated for continuous operating temperatures ranging from -40\u00b0C up to +70\u00b0C (+158\u00b0F) or +80\u00b0C, depending on the grade of polyethylene used. For pipelines operating in higher temperatures (up to +110\u00b0C), a 3PP (Three-Layer Polypropylene) coating system is recommended.<\/p>\n<\/details>\n<details id=\"e-n-accordion-item-2642\">\n<summary tabindex=\"-1\" data-accordion-index=\"3\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2642\">Q3: 3LPE vs. FBE coating: Which should I choose for underground oil &amp; gas pipelines?<\/summary>\n<p>FBE coating is cost-effective and offers superior cathodic disbondment resistance, making it suitable for smooth soil conditions. However, 3LPE combines FBE&#8217;s corrosion resistance with a heavy HDPE outer shield, making 3LPE the industry standard for harsh environments, rocky soils, river crossings, and trenchless horizontal directional drilling (HDD).<\/p>\n<\/details>\n<details id=\"e-n-accordion-item-2643\">\n<summary tabindex=\"-1\" data-accordion-index=\"4\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2643\">Q4: Which international standards do your 3LPE steel pipes comply with?<\/summary>\n<p>Our 3LPE coated steel pipes strictly conform to major international pipeline coating standards, including ISO 21809-1, DIN 30670, CAN\/CSA Z245.21, and NFA 49-710. Substrate pipes are supplied to API 5L (PSL1\/PSL2), ASTM A53\/A106, and EN 10219.<\/p>\n<\/details>","protected":false},"excerpt":{"rendered":"<p><strong>TUBE EN ACIER 3LPE<\/strong><br \/>\nDiam\u00e8tre ext\u00e9rieur : \u03a660 mm \u2013 3 000 mm (2\u2033 \u2013 118\u2033)<br \/>\n\u00c9paisseur de paroi : 4,5 \u2013 50 mm<br \/>\nNormes de qualit\u00e9 : ISO 21809-1, DIN 30670, NFA 49-710, CSA Z245.21<br \/>\nLongueur\uff1a6 - 18m ( 20\u201d- 60\u201d)<br \/>\nType de rev\u00eatement : 3LPE (poly\u00e9thyl\u00e8ne \u00e0 trois couches)<\/p>","protected":false},"featured_media":3747,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"3LPE Steel Pipe \u2013 Triple Layer Polyethylene Coating | Allland","_seopress_titles_desc":"3LPE steel pipes utilize triple-layer polyethylene coating to deliver maximum corrosion resistance for demanding oil, gas, and water steel pipeline networks.","_seopress_robots_index":"","_gspb_post_css":""},"product_brand":[],"product_cat":[15],"product_tag":[81,77,82,80,79],"class_list":["post-3746","product","type-product","status-publish","has-post-thumbnail","product_cat-allland-steel-pipe","product_tag-energy-sector","product_tag-industrial-steel-pipes","product_tag-infrastructure-utilities","product_tag-infrastructure-projects","product_tag-oil-gas-pipelines","first","instock","downloadable","shipping-taxable","product-type-simple"],"acf":[],"etheme_brands":{"errors":{"invalid_taxonomy":["Taxonomie non valide."]},"error_data":[]},"_links":{"self":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product\/3746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":3,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product\/3746\/revisions"}],"predecessor-version":[{"id":33463,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product\/3746\/revisions\/33463"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/media\/3747"}],"wp:attachment":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/media?parent=3746"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product_brand?post=3746"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product_cat?post=3746"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/product_tag?post=3746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}