{"product_id":"k-flex-k-rock-alu-40mm","title":"K-Flex K-Rock ALU Mineral Wool Pipe Insulation 40mm Wall","description":"\u003ch2\u003eK-Flex K-Rock ALU Mineral Wool Pipe Insulation — 40mm Wall\u003c\/h2\u003e\u003cp\u003eK-FLEX K-Rock ALU is a pre-formed mineral wool (rock wool) pipe section with an aluminium foil facing, manufactured to the highest European standards. Engineered for high-temperature HVAC, industrial, and building services pipework where elastomeric insulation is unsuitable, K-Rock ALU delivers outstanding thermal performance, fire resistance, and mechanical durability in demanding environments.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003e40mm wall thickness\u003c\/strong\u003e is suited to larger-bore and higher-temperature pipework in industrial plant rooms, district heating mains, steam distribution, and process pipework where maximum thermal resistance and Euroclass A1 fire performance are required. Available in bore sizes from 15mm to 273mm.\u003c\/p\u003e\u003cp\u003eThe factory-applied aluminium foil laminate provides a clean, professional finish and acts as a vapour barrier, making K-Rock ALU the preferred specification for plant rooms, district heating, steam lines, and high-temperature process pipework. Seal all joints and longitudinal seams with aluminium foil tape for a complete vapour-tight installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRock mineral wool construction — excellent high-temperature performance\u003c\/li\u003e\n\u003cli\u003eAluminium foil (ALU) facing — vapour barrier, professional finish, and UV resistance\u003c\/li\u003e\n\u003cli\u003eOutstanding fire resistance — Euroclass A1 non-combustible\u003c\/li\u003e\n\u003cli\u003eExcellent acoustic and thermal insulation properties\u003c\/li\u003e\n\u003cli\u003eRigid pre-formed sections for fast, accurate installation\u003c\/li\u003e\n\u003cli\u003e40mm wall — 15mm to 273mm bore sizes available\u003c\/li\u003e\n\u003cli\u003eSupplied per 1 metre section\u003c\/li\u003e\n\u003cli\u003eCE certified — compliant with EN 14303\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-temperature HVAC pipework and plant rooms\u003c\/li\u003e\n\u003cli\u003eDistrict heating and steam distribution\u003c\/li\u003e\n\u003cli\u003eHot water and process pipework\u003c\/li\u003e\n\u003cli\u003eIndustrial installations requiring fire-rated insulation\u003c\/li\u003e\n\u003cli\u003eBuilding services where non-combustible insulation is specified\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRock mineral wool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium foil laminate (ALU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWall thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore sizes available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15mm to 273mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-200°C to +650°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal conductivity (λ)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.033 W\/(m·K) at 10°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReaction to fire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEuroclass A1 — non-combustible (EN 13501-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater vapour diffusion resistance (μ)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥ 7,000 (ALU facing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEN 14303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSection length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 metre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver (ALU faced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK-FLEX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eOther wall thicknesses:\u003c\/strong\u003e \u003ca href=\"\/products\/k-flex-k-rock-alu-20mm\"\u003e20mm\u003c\/a\u003e | \u003ca href=\"\/products\/k-flex-k-rock-alu-25mm\"\u003e25mm\u003c\/a\u003e | \u003ca href=\"\/products\/k-flex-k-rock-alu-30mm\"\u003e30mm\u003c\/a\u003e | \u003ca href=\"\/products\/k-flex-k-rock-alu-50mm\"\u003e50mm\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e⚠️ Additional wall thicknesses available on request:\u003c\/strong\u003e 60mm, 70mm, 80mm, 90mm, 100mm and 120mm. Please contact us at \u003ca href=\"mailto:sales@ryanairconspares.com\"\u003esales@ryanairconspares.com\u003c\/a\u003e for pricing and availability.\u003c\/p\u003e","brand":"K-Flex","offers":[{"title":"15mm","offer_id":57273678135673,"sku":"40015LR1080BARP","price":8.67,"currency_code":"GBP","in_stock":true},{"title":"18mm","offer_id":57273678168441,"sku":"40018LR1080BARP","price":9.82,"currency_code":"GBP","in_stock":true},{"title":"22mm","offer_id":57273678201209,"sku":"40022LR1080BARP","price":10.5,"currency_code":"GBP","in_stock":true},{"title":"28mm","offer_id":57273678233977,"sku":"40028LR1080BARP","price":11.29,"currency_code":"GBP","in_stock":true},{"title":"34mm","offer_id":57273678266745,"sku":"40034LR1080BARP","price":12.21,"currency_code":"GBP","in_stock":true},{"title":"42mm","offer_id":57273678299513,"sku":"40042LR1080BARP","price":13.13,"currency_code":"GBP","in_stock":true},{"title":"48mm","offer_id":57273678332281,"sku":"40048LR1080BARP","price":13.97,"currency_code":"GBP","in_stock":true},{"title":"54mm","offer_id":57273678365049,"sku":"40054LR1080BARP","price":15.12,"currency_code":"GBP","in_stock":true},{"title":"60mm","offer_id":57273678397817,"sku":"40060LR1080BARP","price":17.44,"currency_code":"GBP","in_stock":true},{"title":"64mm","offer_id":57273678430585,"sku":"40064LR1080BARP","price":17.96,"currency_code":"GBP","in_stock":true},{"title":"70mm","offer_id":57273678463353,"sku":"40070LR1080BARP","price":18.88,"currency_code":"GBP","in_stock":true},{"title":"76mm","offer_id":57273678496121,"sku":"40076LR1080BARP","price":20.93,"currency_code":"GBP","in_stock":true},{"title":"89mm","offer_id":57273678528889,"sku":"40089LR1080BARP","price":24.47,"currency_code":"GBP","in_stock":true},{"title":"102mm","offer_id":57273678561657,"sku":"40102LR1080BARP","price":26.65,"currency_code":"GBP","in_stock":true},{"title":"108mm","offer_id":57273678594425,"sku":"40108LR1080BARP","price":27.73,"currency_code":"GBP","in_stock":true},{"title":"114mm","offer_id":57273678627193,"sku":"40114LR1080BARP","price":28.83,"currency_code":"GBP","in_stock":true},{"title":"133mm","offer_id":57273678659961,"sku":"40133LR1080BARP","price":41.28,"currency_code":"GBP","in_stock":true},{"title":"140mm","offer_id":57273678692729,"sku":"40140LR1080BARP","price":42.72,"currency_code":"GBP","in_stock":true},{"title":"159mm","offer_id":57273678725497,"sku":"40159LR1080BARP","price":64.39,"currency_code":"GBP","in_stock":true},{"title":"168mm","offer_id":57273678758265,"sku":"40168LR1080BARP","price":66.46,"currency_code":"GBP","in_stock":true},{"title":"219mm","offer_id":57273678791033,"sku":"40219LR1080BARP","price":79.62,"currency_code":"GBP","in_stock":true},{"title":"273mm","offer_id":57273678823801,"sku":"40273LR1080BARP","price":99.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/K-FLEX-K-Rock-ALU-Mineral-Wool-Pipe-Insulation-Ryan-Air-Conditioning-Spares-68791865377143_b3b67377-e713-4c83-b3b3-6e601b88e415.png?v=1778762499","url":"https:\/\/www.airconspares.com\/products\/k-flex-k-rock-alu-40mm","provider":"Airconspares.com","version":"1.0","type":"link"}