{"title":"32mm Wall Thickness Pipe Insulation","description":null,"products":[{"product_id":"armaflex-pipe-insulation-lagging-black-nitrile-foam-class-o-2m","title":"Armaflex EVO Pipe Insulation Lagging — Class O Black Nitrile Foam 2m","description":"\u003ch2\u003eArmaflex EVO Pipe Insulation — Class O Black Nitrile Rubber Foam\u003c\/h2\u003e\u003cp\u003eArmaflex EVO is the world's leading closed-cell elastomeric foam pipe insulation, manufactured by Armacell and specified by mechanical engineers, HVAC contractors and plumbers across the UK for over 60 years. Available in 2 metre lengths with a standard slit closure, Armaflex EVO delivers Class O fire performance, a built-in vapour barrier and low thermal conductivity in a flexible, easy-to-install format that fits every standard pipe size.\u003c\/p\u003e\u003cp\u003eIf you need a factory-applied adhesive closure for faster installation on straight runs, see our \u003ca href=\"\/products\/armaflex-evo-self-seal-pipe-insulation-lagging-black-nitrile-foam-class-o-2m\"\u003eArmaflex EVO Self-Seal\u003c\/a\u003e range.\u003c\/p\u003e\u003ch3\u003eWhy Armaflex EVO?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass O fire rated\u003c\/strong\u003e — BS 476 Part 6 \u0026amp; 7, B-s2,d0 to EN 13501. Mandatory for commercial buildings, HVAC systems and any installation covered by Building Regulations Part B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in vapour barrier\u003c\/strong\u003e — closed-cell structure with water vapour resistance μ ≥ 10,000. No separate vapour wrapping required on chilled water or cold pipework\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow thermal conductivity\u003c\/strong\u003e — λ ≤ 0.033 W\/mK at 0°C, among the lowest of any flexible pipe insulation. Minimises heat loss on heating pipework and heat gain on chilled water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroban® antimicrobial protection\u003c\/strong\u003e — built into the foam, inhibiting mould and mildew growth on the insulation surface. Important for HVAC and chilled water applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range\u003c\/strong\u003e — -50°C to +105°C continuous operating temperature, covering all standard heating, cooling and refrigeration applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible and lightweight\u003c\/strong\u003e — bends around fittings and changes of direction without cutting. Significantly faster to install than rigid insulation on complex pipework\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Closed-cell nitrile rubber (NBR) elastomeric foam\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire classification:\u003c\/strong\u003e Class O (BS 476 Part 6 \u0026amp; 7), B-s2,d0 (EN 13501-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal conductivity:\u003c\/strong\u003e λ ≤ 0.033 W\/mK at 0°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater vapour resistance:\u003c\/strong\u003e μ ≥ 10,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -50°C to +105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 2 metres per piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Standard slit (requires \u003ca href=\"\/products\/armaflex-520-pipe-insulation-adhesive\"\u003eArmaflex 520 adhesive\u003c\/a\u003e to seal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntimicrobial:\u003c\/strong\u003e Microban®\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAvailable Pipe Sizes \u0026amp; Wall Thicknesses\u003c\/h3\u003e\u003cp\u003eSelect your pipe outside diameter (OD) and wall thickness from the variant selector above. Available in all standard UK pipe sizes from 10mm to 114mm OD, in 9mm, 13mm, 19mm and 25mm wall thicknesses.\u003c\/p\u003e\u003cp\u003eNot sure which wall thickness you need? See our \u003ca href=\"\/blogs\/news\/armaflex-pipe-insulation-thickness-guide\"\u003eArmaflex thickness guide\u003c\/a\u003e for recommendations by application.\u003c\/p\u003e\u003ch3\u003eStandard Slit vs Self-Seal — Which Should I Choose?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard slit (this product)\u003c\/strong\u003e — the traditional Armaflex format. The insulation is slit along its length and opened to fit over the pipe. Joints and the slit closure are sealed with \u003ca href=\"\/products\/armaflex-520-pipe-insulation-adhesive\"\u003eArmaflex 520 adhesive\u003c\/a\u003e. Preferred by many installers for complex pipework with lots of fittings, bends and tees where the adhesive is being applied anyway\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/armaflex-evo-self-seal-pipe-insulation-lagging-black-nitrile-foam-class-o-2m\"\u003eSelf-seal\u003c\/a\u003e\u003c\/strong\u003e — factory-applied pressure-sensitive adhesive strip on the slit closure. Faster installation on long straight runs as no adhesive is needed to close the slit. Butt joints and fittings still require \u003ca href=\"\/products\/armaflex-520-pipe-insulation-adhesive\"\u003eArmaflex 520 adhesive\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCommercial and domestic central heating flow and return pipework\u003c\/li\u003e\n\u003cli\u003eChilled water flow and return in HVAC systems\u003c\/li\u003e\n\u003cli\u003eDomestic and commercial hot and cold water supply\u003c\/li\u003e\n\u003cli\u003eAir conditioning refrigerant and chilled water pipework\u003c\/li\u003e\n\u003cli\u003eHeat pump primary circuits and buffer vessel connections\u003c\/li\u003e\n\u003cli\u003eCondensate pipework from boilers and heat pumps\u003c\/li\u003e\n\u003cli\u003eRefrigeration suction and liquid lines\u003c\/li\u003e\n\u003cli\u003eDistrict heating secondary connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eArmaflex EVO standard slit is installed by opening the slit, fitting over the pipe and sealing the closure with \u003ca href=\"\/products\/armaflex-520-pipe-insulation-adhesive\"\u003eArmaflex 520 contact adhesive\u003c\/a\u003e. Butt joints between lengths should also be sealed with Armaflex 520. For bends and fittings, mitre cut the insulation and seal all cut faces with adhesive before assembly. Do not stretch or compress the insulation during installation as this reduces the effective wall thickness.\u003c\/p\u003e\u003ch3\u003eComplete Your Installation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/armaflex-520-pipe-insulation-adhesive\"\u003eArmaflex 520 Adhesive\u003c\/a\u003e\u003c\/strong\u003e — essential for sealing the slit closure and all butt joints. Do not use general-purpose contact adhesive on Armaflex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/armaflex-adhesive-glue-cleaner-1-litre\"\u003eArmaflex Cleaner\u003c\/a\u003e\u003c\/strong\u003e — for surface preparation and removing adhesive residue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/armaflex-pipe-insulation-lagging-tape-50mm-x-3mm-x-15m-black-foam-class-o\"\u003eArmaflex Lagging Tape\u003c\/a\u003e\u003c\/strong\u003e — for finishing exposed edges and joints\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rubber-standard-pipe-clamps\"\u003eRubber \u0026amp; Standard Pipe Clamps\u003c\/a\u003e\u003c\/strong\u003e — correct pipe clamps for insulated pipework\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Downloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1045\/1238\/9445\/files\/af-armaflex-technical-datasheet.pdf?v=1780819041\" target=\"_blank\"\u003eAF\/Armaflex EVO — Technical Data Sheet (PDF)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1045\/1238\/9445\/files\/af-armaflex-product-brochure_2.pdf?v=1780819041\" target=\"_blank\"\u003eAF\/Armaflex EVO — Product Brochure (PDF)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1045\/1238\/9445\/files\/af-armaflex-environmental-product-declaration.pdf?v=1780819041\" target=\"_blank\"\u003eAF\/Armaflex EVO — Environmental Product Declaration (PDF)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1045\/1238\/9445\/files\/dopafarmaflexsrodaen-6.pdf?v=1780819040\" target=\"_blank\"\u003eAF\/Armaflex EVO — Declaration of Performance (PDF)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor technical advice or help selecting the right Armaflex product for your project, call our team on \u003cstrong\u003e0161 775 1190\u003c\/strong\u003e (Mon–Fri 8am–4pm) or browse the full \u003ca href=\"\/collections\/armaflex-pipe-insulation\"\u003eArmaflex range\u003c\/a\u003e.\u003c\/p\u003e","brand":"Armacell","offers":[{"title":"6 \/ 9","offer_id":58099015909701,"sku":"L355","price":2.87,"currency_code":"GBP","in_stock":true},{"title":"6 \/ 6","offer_id":58099015975237,"sku":"L300","price":3.14,"currency_code":"GBP","in_stock":true},{"title":"6 \/ 13","offer_id":58099015942469,"sku":"L366","price":3.83,"currency_code":"GBP","in_stock":true},{"title":"10 \/ 6","offer_id":58099016008005,"sku":"L301","price":3.92,"currency_code":"GBP","in_stock":true},{"title":"10 \/ 13","offer_id":58099016040773,"sku":"L367","price":3.98,"currency_code":"GBP","in_stock":true},{"title":"10 \/ 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