{"product_id":"aeroflex-ac3812-epdm-tube-insulation-3-8-in-id-1-2-in-wall","title":"Aeroflex ac3812 Epdm Tube Insulation 3\/8 in Id 1\/2 in Wall","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe AEROFLEX ac3812 is a flexible, closed-cell EPDM elastomeric tube insulation designed for insulating liquid cooling and heating lines in mechanical systems. With a 3\/8 inch inner diameter and a 1\/2 inch wall thickness, it fits 3\/8 inch OD tubing. The closed-cell structure limits moisture vapor transmission to 0.03 and delivers a thermal conductivity of 0.245, both tested values rather than theoretical calculations. Lightweight and easy to handle, this insulation is well suited for HVAC, refrigeration, and plumbing applications where reliable thermal and moisture performance is required.\u003c\/p\u003e\u003cp\u003eThe ac3812 is appropriate for residential and commercial mechanical systems including air conditioning lines, chilled water piping, refrigeration suction lines, and domestic hot and cold water lines. It is commonly installed by HVAC technicians, refrigeration mechanics, and plumbers during new construction or retrofit work. Its EPDM rubber composition provides UV resistance, making it suitable for both indoor and outdoor exposed piping runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eClosed-cell EPDM construction limits moisture vapor transmission to 0.03\u003c\/li\u003e\n\u003cli\u003eThermal conductivity of 0.245 based on tested values, not theoretical calculations\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 for indoor and outdoor installations\u003c\/li\u003e\n\u003cli\u003eFits 3\/8 inch OD tubing with 3\/8 inch ID and 1\/2 inch wall thickness\u003c\/li\u003e\n\u003cli\u003eFlexible and lightweight for easy field installation and routing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on 3\/8 inch OD tubing in HVAC, air conditioning, refrigeration, and plumbing piping systems requiring closed-cell elastomeric tube insulation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed HVAC technicians, refrigeration mechanics, or plumbers. Isolate and de-energize the associated system before installing or replacing pipe insulation on active lines. Butt joints and seams should be fully sealed with compatible elastomeric insulation adhesive to maintain the vapor barrier. Follow local mechanical codes and manufacturer adhesive guidelines for exterior or high-humidity applications.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Tubing OD\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: EPDM Elastomeric Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Structure\u003c\/strong\u003e: Closed-cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e: 0.245\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 Resistant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: ac3812\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AEROFLEX","offers":[{"title":"Default Title","offer_id":51383213556018,"sku":"AC3812","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312674314.webp?v=1782589895","url":"https:\/\/voomisupply.com\/products\/aeroflex-ac3812-epdm-tube-insulation-3-8-in-id-1-2-in-wall","provider":"Voomi Supply","version":"1.0","type":"link"}