{"product_id":"k-flex-st-self-seal-13mm","title":"K-Flex ST Self-Seal Pipe Insulation 13mm Wall","description":"\u003cp\u003e\u003cstrong\u003eK-FLEX ST Self-Seal insulation is the fastest way to insulate AC pipework — no adhesive required on the seam, clean finish every time.\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e✔ Self-seal — no adhesive needed on straight runs\u003c\/li\u003e\n\u003cli\u003e✔ Class O fire-rated insulation (Euroclass BL-s2, d0)\u003c\/li\u003e\n\u003cli\u003e✔ 2m lengths — fast installation on site\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Use Self-Seal Insulation?\u003c\/h3\u003e\u003cp\u003eSelf-seal insulation reduces installation time and eliminates adhesive on straight runs. This means faster installs, less mess on site, and consistent sealing across every job — especially valuable on larger or multi-unit installations where speed and finish quality matter.\u003c\/p\u003e\u003ch3\u003eAbout the 13mm Wall\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003e13mm wall thickness\u003c\/strong\u003e is the most widely specified for standard split system AC and domestic HVAC installations. It meets the thermal performance requirements for refrigerant pipework on most residential and light commercial jobs, and is the default choice for HVAC engineers across the UK.\u003c\/p\u003e\u003ch3\u003eWhere This Is Used\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRefrigerant pipework on split system AC installations\u003c\/li\u003e\n\u003cli\u003eChilled water and cooling pipework\u003c\/li\u003e\n\u003cli\u003eDomestic and commercial HVAC systems\u003c\/li\u003e\n\u003cli\u003eAny application requiring fast, clean pipe insulation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing the Right Wall Thickness\u003c\/h3\u003e\u003cp\u003eSelect pipe bore size to match your copper pipe OD, then choose wall thickness based on your application:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/k-flex-st-self-seal-pipe-insulation-9mm-wall\"\u003e9mm\u003c\/a\u003e — tight spaces and short pipe runs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13mm\u003c\/strong\u003e — standard AC installations (most common)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/k-flex-st-self-seal-pipe-insulation-19mm-wall\"\u003e19mm\u003c\/a\u003e — refrigeration and low temperature systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSelf-seal adhesive closure — fast, clean installation without separate adhesive on straight runs\u003c\/li\u003e\n\u003cli\u003eClosed-cell elastomeric foam — prevents condensation and moisture ingress\u003c\/li\u003e\n\u003cli\u003eClass O fire rating — Euroclass BL-s2, d0\u003c\/li\u003e\n\u003cli\u003eThermal conductivity as low as 0.031 W\/(m·K)\u003c\/li\u003e\n\u003cli\u003eService temperature range: -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eSupplied in 2m lengths\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK-FLEX ST Self-Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2m per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClosed-cell elastomeric foam (NBR\/PVC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFire Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass O (Euroclass BL-s2, d0)\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\u003e0.031 W\/(m·K) at 0°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eService Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelf-seal adhesive strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eEssential Accessories\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/installation-materials\"\u003eK-FLEX ST Tape\u003c\/a\u003e — seal joints, fittings and cut ends for a complete insulation system\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/installation-materials\"\u003eK-420 Adhesive\u003c\/a\u003e — for bends, tees and complex connections where self-seal is not sufficient\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Your Installation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/copper-pipe-1\"\u003eAC Copper Pipe\u003c\/a\u003e — refrigerant-grade copper pipe for AC systems\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/pipe-supports-fixings-hangers\"\u003ePipe Supports \u0026amp; Fixings\u003c\/a\u003e — clips and brackets for securing insulated pipework\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/trunking-ducting\"\u003eTrunking \u0026amp; Cable Management\u003c\/a\u003e — for neat routing of pipework and cables\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOrder K-FLEX ST Self-Seal 13mm pipe insulation today — available from UK stock with fast trade delivery.\u003c\/strong\u003e\u003c\/p\u003e","brand":"K-Flex","offers":[{"title":"15mm \/ 13mm","offer_id":57269970829689,"sku":"13015215603","price":3.98,"currency_code":"GBP","in_stock":true},{"title":"20mm \/ 13mm","offer_id":57269970862457,"sku":"13020215603","price":4.82,"currency_code":"GBP","in_stock":true},{"title":"22mm \/ 13mm","offer_id":57269970895225,"sku":"13022215603","price":4.94,"currency_code":"GBP","in_stock":true},{"title":"28mm \/ 13mm","offer_id":57269970927993,"sku":"13028215603","price":5.92,"currency_code":"GBP","in_stock":true},{"title":"35mm \/ 13mm","offer_id":57269970960761,"sku":"13035215603","price":6.4,"currency_code":"GBP","in_stock":true},{"title":"42mm \/ 13mm","offer_id":57269970993529,"sku":"13042215603","price":7.58,"currency_code":"GBP","in_stock":true},{"title":"48mm \/ 13mm","offer_id":57269971026297,"sku":"13048215603","price":8.96,"currency_code":"GBP","in_stock":true},{"title":"54mm \/ 13mm","offer_id":57269971059065,"sku":"13054215603","price":10.4,"currency_code":"GBP","in_stock":true},{"title":"60mm \/ 13mm","offer_id":57269971091833,"sku":"13060215603","price":11.74,"currency_code":"GBP","in_stock":true},{"title":"67mm \/ 13mm","offer_id":57269971124601,"sku":"13067215603","price":14.36,"currency_code":"GBP","in_stock":true},{"title":"76mm \/ 13mm","offer_id":57269971157369,"sku":"13076215603","price":17.36,"currency_code":"GBP","in_stock":true},{"title":"89mm \/ 13mm","offer_id":57269971190137,"sku":"13089215603","price":22.22,"currency_code":"GBP","in_stock":true},{"title":"114mm \/ 13mm","offer_id":57269971222905,"sku":"13114215603","price":35.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/K-FLEX-Self-Seal-Tube-Insulation-for-Quick-Clean-Install-Ryan-Air-Conditioning-Spares-68116285358455_d0e1bbec-bada-4eaa-8b23-90a7da4ba813.webp?v=1778740332","url":"https:\/\/www.airconspares.com\/products\/k-flex-st-self-seal-13mm","provider":"Airconspares.com","version":"1.0","type":"link"}