{"product_id":"armaflex-rail-sd-low-smoke-density-pipe-insulation-2m-lengths","title":"Armaflex Rail SD Low Smoke Density Pipe Insulation 2m Lengths","description":"\u003cstyle\u003e#html-body [data-pb-style=AN19MKM]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-background-type=\"image\" data-video-loop=\"true\" data-video-play-only-visible=\"true\" data-video-lazy-load=\"true\" data-video-fallback-src=\"\" data-background-lazy-load=\"\" data-element=\"inner\" data-pb-style=\"AN19MKM\"\u003e\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\u003cdiv class=\"product-description\"\u003e\n    \u003ch1\u003eArmaFlex Rail SD Insulation – Premium Closed-Cell Pipe Lagging for UK Rail \u0026amp; Transport\u003c\/h1\u003e\n    \n    \u003cp\u003eArmaFlex Rail SD is a high-performance, flexible closed-cell elastomeric \u003cstrong\u003epipe insulation\u003c\/strong\u003e designed for UK rail, metro, tram, and transport applications. This advanced \u003cstrong\u003erail insulation\u003c\/strong\u003e from Armacell provides superior \u003cstrong\u003ethermal insulation\u003c\/strong\u003e, \u003cstrong\u003econdensation control\u003c\/strong\u003e, and \u003cstrong\u003eacoustic insulation\u003c\/strong\u003e, protecting \u003cstrong\u003eHVAC systems\u003c\/strong\u003e, \u003cstrong\u003echilled water pipes\u003c\/strong\u003e, and \u003cstrong\u003ehot water lines\u003c\/strong\u003e in trains, carriages, and commercial vehicles.\u003c\/p\u003e\n    \n    \u003ch2\u003eKey Technical Benefits of ArmaFlex Rail SD Pipe Insulation\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent Thermal Efficiency:\u003c\/strong\u003e λ = 0.034 W\/(m·K) at 0°C – reduces energy loss in \u003cstrong\u003erail HVAC insulation\u003c\/strong\u003e.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBuilt-in Vapour Barrier:\u003c\/strong\u003e Closed-cell structure prevents \u003cstrong\u003econdensation on pipes\u003c\/strong\u003e without extra coatings.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e -50°C to +110°C – ideal for \u003cstrong\u003ecold water pipe insulation\u003c\/strong\u003e and \u003cstrong\u003eheating system lagging\u003c\/strong\u003e.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBS 476 Class 0 \u0026amp; FM Approved:\u003c\/strong\u003e Meets strict \u003cstrong\u003eUK rail fire safety standards\u003c\/strong\u003e.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eZero ODP, GWP \u0026lt;5:\u003c\/strong\u003e Environmentally friendly \u003cstrong\u003eeco insulation for transport\u003c\/strong\u003e.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNoise Reduction:\u003c\/strong\u003e Minimises vibration and \u003cstrong\u003estructure-borne sound in trains\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n    \u003ctable class=\"technical-table\" style=\"width:100%; border-collapse:separate; border-spacing:0; margin:20px 0; font-size:14px; box-shadow:0 4px 8px rgba(0,0,0,0.1); border-radius:8px; overflow:hidden;\"\u003e\n        \u003cthead\u003e\n            \u003ctr style=\"background-color:#f8f8f8;\"\u003e\n                \u003cth style=\"text-align:left; padding:15px 12px; font-weight:bold; border-bottom:3px solid #ddd;\"\u003eProperty\u003c\/th\u003e\n                \u003cth style=\"text-align:left; padding:15px 12px; font-weight:bold; border-bottom:3px solid #ddd;\"\u003eValue \/ Standard\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background-color:#ffffff; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eClosed-cell elastomeric foam (EPDM-based)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#f9f9f9; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eThermal Conductivity (λ)\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003e0.034 W\/(m·K) at 0°C (EN ISO 8497)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#ffffff; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eTemperature Range\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003e-50°C to +110°C\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#f9f9f9; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eWater Vapour Diffusion Resistance (μ)\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003e≥ 10,000 (EN 13469)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#ffffff; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eFire Performance\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eBS 476 Parts 6 \u0026amp; 7 Class 0\u003cbr\u003eFM Approved (Class 4880)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#f9f9f9; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eEnvironmental\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eODP = 0, GWP \u0026lt;5\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#ffffff; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eDensity\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003e40–60 kg\/m³\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#f9f9f9; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eUV Resistance\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eExcellent (suitable for external use)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#ffffff; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eMicrobial Resistance\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eNo fungal growth (ISO 846)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#f9f9f9; transition:background-color 0.2s;\"\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee; font-weight:600;\"\u003eFormats Available\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px; border-bottom:1px solid #eee;\"\u003eTubes (self-adhesive \u0026amp; plain), sheets, continuous rolls\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color:#ffffff;\"\u003e\n                \u003ctd style=\"padding:15px 12px; font-weight:600;\"\u003eThickness Range\u003c\/td\u003e\n                \u003ctd style=\"padding:15px 12px;\"\u003e9mm, 13mm, 19mm, 25mm, 32mm\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \n    \u003ch2\u003eInstallation Guide – ArmaFlex Rail SD\u003c\/h2\u003e\n    \u003cp\u003eArmaFlex Rail SD is designed for fast, clean, and reliable \u003cstrong\u003epipe insulation installation\u003c\/strong\u003e in rail and transport environments. Follow these steps for optimal performance:\u003c\/p\u003e\n    \n    \u003ch3\u003e1. Preparation\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eEnsure pipe surface is clean, dry, and free from oil, grease, or dust.\u003c\/li\u003e\n        \u003cli\u003eMeasure pipe diameter and select correct \u003cstrong\u003eArmaFlex tube size\u003c\/strong\u003e (internal diameter should match pipe OD).\u003c\/li\u003e\n        \u003cli\u003eUse the ArmaFlex template or the pipe circumference guide for accurate cutting.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch3\u003e2. Cutting \u0026amp; Fitting\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eCut tubes or sheets with a sharp, non-serrated knife for clean edges.\u003c\/li\u003e\n        \u003cli\u003eFor \u003cstrong\u003eself-adhesive tubes\u003c\/strong\u003e: Peel release paper gradually and press firmly along the seam.\u003c\/li\u003e\n        \u003cli\u003eApply even pressure to activate high-tack adhesive – no additional glue required in most cases.\u003c\/li\u003e\n        \u003cli\u003eFor bends and elbows: Use pre-formed fittings or mitre-cut sections and seal with ArmaFlex adhesive.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch3\u003e3. Sealing \u0026amp; Finishing\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eAll joints, butt edges, and terminations must be sealed with \u003cstrong\u003eArmaFlex 520 Adhesive\u003c\/strong\u003e or self-seal tape.\u003c\/li\u003e\n        \u003cli\u003eOverlap longitudinal seams by 10–15mm and compress firmly.\u003c\/li\u003e\n        \u003cli\u003eProtect outdoor installations with ArmaFlex Protect or UV-resistant cladding.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch3\u003e4. Valves, Flanges \u0026amp; Fittings\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003eUse an ArmaFlex sheet to fabricate boxed insulation covers.\u003c\/li\u003e\n        \u003cli\u003eSecure with adhesive and ArmaFlex tape for a full vapour seal.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e For cold lines below 10°C, allow adhesive to tack (2–5 mins) before joining. Always install in dry conditions above 5°C.\u003c\/p\u003e\n    \n    \u003cp\u003eDownload full \u003ca href=\"\/media\/armaflex-rail-sd-installation-guide.pdf\" target=\"_blank\"\u003eArmaFlex Rail SD Installation Guide (PDF)\u003c\/a\u003e from PipeLagging.com.\u003c\/p\u003e\n    \n    \u003ch2\u003eIdeal Applications for ArmaFlex Rail SD\u003c\/h2\u003e\n    \u003cp\u003eEngineered for \u003cstrong\u003erolling stock insulation\u003c\/strong\u003e, \u003cstrong\u003eunderground train pipe lagging\u003c\/strong\u003e, trams, buses, and fleet vehicles. Perfect for:\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eChilled water pipe insulation\u003c\/strong\u003e in air conditioning systems\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHot water pipe lagging\u003c\/strong\u003e for heating circuits\u003c\/li\u003e\n        \u003cli\u003e\u003cstrong\u003eRefrigeration line insulation\u003c\/strong\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003cstrong\u003eCondensate drain insulation\u003c\/strong\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003cstrong\u003eVentilation duct insulation\u003c\/strong\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch2\u003eEasy Installation \u0026amp; Product Formats\u003c\/h2\u003e\n    \u003cp\u003eAvailable in \u003cstrong\u003eself-adhesive insulation tubes\u003c\/strong\u003e, \u003cstrong\u003einsulation sheets\u003c\/strong\u003e, and \u003cstrong\u003econtinuous rolls\u003c\/strong\u003e. Flexible material fits bends, valves, and fittings. High-tack \u003cstrong\u003eself-seal pipe insulation\u003c\/strong\u003e speeds up installation on-site with long-lasting adhesion.\u003c\/p\u003e\n    \n    \u003ch2\u003eDurability \u0026amp; Long-Term Performance\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eUV and weather resistant – suitable for \u003cstrong\u003eexternal pipe insulation\u003c\/strong\u003e\n\u003c\/li\u003e\n        \u003cli\u003eOil, grease, and chemical resistant\u003c\/li\u003e\n        \u003cli\u003eMould and bacteria resistant – meets hygiene standards\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003ch2\u003eWhy Buy ArmaFlex Rail SD from PipeLagging.com?\u003c\/h2\u003e\n    \u003cp\u003eUK stock with \u003cstrong\u003enext-day delivery\u003c\/strong\u003e. Full range: 9mm–32mm thickness, all diameters. \u003cstrong\u003eCut-to-size insulation service\u003c\/strong\u003e available. Fully compliant with \u003cstrong\u003eUK rail insulation regulations\u003c\/strong\u003e and \u003cstrong\u003ebuilding standards\u003c\/strong\u003e.\u003c\/p\u003e\n    \n    \u003cp\u003eOrder \u003cstrong\u003eArmaFlex Rail SD pipe insulation\u003c\/strong\u003e today at \u003cstrong\u003ewww.pipelagging.com\u003c\/strong\u003e – your trusted UK supplier for \u003cstrong\u003erail pipe lagging\u003c\/strong\u003e, \u003cstrong\u003etransport insulation\u003c\/strong\u003e, and \u003cstrong\u003eenergy-efficient thermal solutions\u003c\/strong\u003e. Expert advice and fast nationwide shipping guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Armacell","offers":[{"title":"12 \/ 9","offer_id":58099120472389,"sku":"RA-09x012","price":14.02,"currency_code":"GBP","in_stock":true},{"title":"12 \/ 13","offer_id":58099120505157,"sku":"RA-13x012","price":20.36,"currency_code":"GBP","in_stock":true},{"title":"15 \/ 9","offer_id":58099120537925,"sku":"RA-09x015","price":17.16,"currency_code":"GBP","in_stock":true},{"title":"15 \/ 13","offer_id":58099120570693,"sku":"RA-13x015","price":22.09,"currency_code":"GBP","in_stock":true},{"title":"18 \/ 9","offer_id":58099120603461,"sku":"RA-09x018","price":17.98,"currency_code":"GBP","in_stock":true},{"title":"18 \/ 13","offer_id":58099120636229,"sku":"RA-13x018","price":22.03,"currency_code":"GBP","in_stock":true},{"title":"22 \/ 9","offer_id":58099120668997,"sku":"RA-09x022","price":18.74,"currency_code":"GBP","in_stock":true},{"title":"22 \/ 13","offer_id":58099120701765,"sku":"RA-13x022","price":23.13,"currency_code":"GBP","in_stock":true},{"title":"28 \/ 9","offer_id":58099120734533,"sku":"RA-09x028","price":19.72,"currency_code":"GBP","in_stock":true},{"title":"28 \/ 13","offer_id":58099120767301,"sku":"RA-13x028","price":28.77,"currency_code":"GBP","in_stock":true},{"title":"35 \/ 9","offer_id":58099120800069,"sku":"RA-09x035","price":22.16,"currency_code":"GBP","in_stock":true},{"title":"35 \/ 13","offer_id":58099120832837,"sku":"RA-13x035","price":30.81,"currency_code":"GBP","in_stock":true},{"title":"42 \/ 9","offer_id":58099120865605,"sku":"RA-09x042","price":24.35,"currency_code":"GBP","in_stock":true},{"title":"42 \/ 13","offer_id":58099120898373,"sku":"RA-13x042","price":39.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1045\/1238\/9445\/files\/armaflex-rail-sd-tubes_1.gif?v=1780033494","url":"https:\/\/www.pipelagging.com\/products\/armaflex-rail-sd-low-smoke-density-pipe-insulation-2m-lengths","provider":"Pipelagging.com","version":"1.0","type":"link"}