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HVAC قناة التفاف العزل
A flexible glass-fiber blanket laminated to a reinforced foil vapor retarder for external thermal and acoustic insulation of metal air ducts.
- Flexible Glass-Fiber Blanket
- Reinforced Foil Vapor Retarder
- Thermal and Acoustic Control
- Fits Rectangular and Round Ducts
مقدمة المنتج
HVAC duct wrap insulation is installed around the exterior of sheet-metal supply and return ducts to reduce heat gain, heat loss and surface condensation. The resilient glass-fiber blanket conforms to rectangular corners and round profiles, while the factory-applied foil-scrim-kraft or reinforced foil jacket forms the external vapor retarder. Circumferential and longitudinal seams are overlapped and sealed continuously. Installed thickness accounts for compression at duct corners so that the specified thermal resistance is maintained over the complete surface.
الخصائص الرئيسية
A reinforced foil facing combines a clean external finish with a low-permeance vapor-control layer.
Multiple densities and thicknesses allow insulation value to be selected without excessive bulk.
The fibrous blanket also absorbs casing-radiated fan and airflow noise from metal duct surfaces.
مخاوف المنتج للعملاء
Duct wrap must remain continuous at corners, hangers and fittings because small gaps in the vapor retarder can produce large areas of condensation.
Cold duct surfaces sweat above the cleanroom ceiling.A continuous insulation layer and sealed low-permeance foil jacket keep the outer surface above the local dew point.
Corner compression reduces the installed thermal resistance.The selected blanket thickness allows for expected compression and uses proper corner wrapping technique.
Staples and hanger penetrations puncture the vapor barrier.Compatible pressure-sensitive foil tape closes seams and all penetrations after fastening.
Unfaced insulation releases fibers into the service void.The factory-laminated facing encloses the exposed blanket surface and is sealed at cut edges.
تطبيقات نموذجية
Cold supply-air duct insulationReturn-air thermal controlCleanroom ceiling ductworkAir-handling-unit plenumsRound and rectangular HVAC fittings
المعلمات الفنية
Typical ranges for foil-faced flexible glass-fiber duct wrap are listed below.
| المواد الأساسية | Resilient glass-fiber blanket bonded with thermosetting resin |
|---|---|
| سمك اللوحة | 25–50 mm nominal blanket thickness |
| العرض الفعال | 1200 mm standard roll width |
| الحد الأقصى الطول | 15000–30000 mm standard roll length, depending on thickness |
| الصلب يواجه سمك | 0.05–0.15 mm reinforced foil laminate facing |
| الكثافة الأساسية | 20–48 kg/m³ |
| الموصلية الحرارية | 0.034–0.043 W/(m·K) at approximately 24°C mean temperature |
| إنهاء السطح | Foil-scrim-kraft or reinforced aluminum foil vapor-retarder facing |
| نوع المشترك | Overlapped wrap seams sealed continuously with pressure-sensitive foil tape |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
25, 38 or 50 mm thickness20–48 kg/m³ nominal densityFSK or all-service foil facingPre-cut widths for standard duct sizes
Planning a HVAC Duct Wrap Insulation specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
