{"product_id":"aeroflex-ac3438-epdm-pipe-insulation-3-4-in-id-3-8-in-wall","title":"Aeroflex ac3438 Epdm Pipe Insulation 3\/4 in Id 3\/8 in Wall","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AEROFLEX ac3438 is a flexible, closed-cell EPDM elastomeric tube insulation designed for insulating liquid cooling and heating lines in mechanical systems. It features a 3\/4-inch inner diameter and a 3\/8-inch wall thickness, sized to fit 3\/4-inch OD copper tubing. The closed-cell structure minimizes moisture ingress and delivers a tested thermal conductivity of 0.245 BTU\/h, making it a reliable choice for HVAC, refrigeration, and plumbing applications. Licensed HVAC technicians and plumbers install this product on both new construction and retrofit mechanical piping systems.\u003c\/p\u003e\n\u003cp\u003eThis insulation is suited for residential and light commercial applications where pipe insulation is required on cooling lines, heating lines, refrigerant suction lines, and domestic plumbing. The 3\/8-inch wall thickness is commonly applied to chilled water lines and refrigerant lines where condensation control and thermal efficiency are required. Its flexibility allows it to be routed around bends and through tight mechanical spaces without cracking or splitting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClosed-cell EPDM construction resists moisture absorption and vapor transmission (water vapor transmission: 0.03)\u003c\/li\u003e\n  \u003cli\u003eTested thermal conductivity of 0.245 — not theoretical estimates\u003c\/li\u003e\n  \u003cli\u003eFlame spread rating of 25 or less and smoke developed rating of 50 or less per ASTM E 84\u003c\/li\u003e\n  \u003cli\u003eUV resistant — suitable for exposed outdoor piping runs\u003c\/li\u003e\n  \u003cli\u003eFlexible and lightweight for easy field installation and routing\u003c\/li\u003e\n  \u003cli\u003eRated for heating, air conditioning, refrigeration, and plumbing applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to fit 3\/4-inch OD copper tubing with a 3\/4-inch ID and 3\/8-inch wall thickness. Suitable for use on liquid cooling lines, heating lines, refrigerant lines, and plumbing pipe in residential and commercial mechanical systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eLicensed HVAC technicians and plumbers typically install elastomeric pipe insulation as part of mechanical rough-in or service work. Shut down and depressurize the piping system before applying insulation where required by local codes. Seams and butt joints should be sealed with a compatible elastomeric adhesive to maintain vapor barrier continuity. Follow applicable mechanical codes, including IMC and IPC requirements, for insulation thickness and vapor retarder standards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner Diameter (ID)\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits Pipe OD\u003c\/strong\u003e: 3\/4 inches (copper tubing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: EPDM Elastomeric Rubber, Closed-Cell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e: 0.245 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Vapor Transmission\u003c\/strong\u003e: 0.03\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlame Spread Rating\u003c\/strong\u003e: 25 or less (ASTM E 84)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmoke Developed Rating\u003c\/strong\u003e: 50 or less (ASTM E 84)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUV Resistance\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AEROFLEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ac3438\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AEROFLEX","offers":[{"title":"Default Title","offer_id":51383374840114,"sku":"AC3438","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312674242.webp?v=1782594982","url":"https:\/\/voomisupply.com\/products\/aeroflex-ac3438-epdm-pipe-insulation-3-4-in-id-3-8-in-wall","provider":"Voomi Supply","version":"1.0","type":"link"}