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Duct Excel ISODEC A2Q (16/24/32 kg/m³) · Ø 76–508 mm (3–20") · Insulation 25 or 50 mm
- Length (mm)
- 10000
- Dimensions
- Insulation 25 or 50 mm
- Pipe size
- Ø 76–508 mm (3–20")
Sound coming in or going out (sound insulation)
Echoey rooms (sound absorption)

Factory-insulated glass-wool flexible duct for air-conditioning, in two types — A2Q and A2X — by air velocity and working pressure.
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See all models and sizesManufacturer documentsTechnical specifications
Flexible duct insulated with glass wool, reinforced foil jacket
ISODEC from Duct Excel is a flexible duct factory-insulated with glass wool, with a seamless aluminium-foil jacket reinforced with glass yarn, for air-conditioning systems. A2Q is rated to 20 m/s air velocity and A2X to 30 m/s. Insulation 25 or 50 mm thick.
Glass wool (fibreglass) · Facing: Seamless aluminium foil reinforced with glass yarn · Flexible duct
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ISODEC product page (Duct Excel)
Technical data from the manufacturer's documents Duct Excel · Checked 26 Sept 2026
All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.
| Property | Value | Conditions / standard | Source |
|---|---|---|---|
| Service temperature range | -30 – +140 °C | — | ISODEC product page (Duct Excel) |
| Max air velocity / working pressure, A2Q | 20 m/s · 500 mm W.G. (5,000 Pa) | — | ISODEC product page (Duct Excel) |
| Max air velocity / working pressure, A2X | 30 m/s · 750 mm W.G. (7,500 Pa) | — | ISODEC product page (Duct Excel) |
| Glass-wool density | 16 / 24 / 32 / 48 kg/m³ | — | ISODEC product page (Duct Excel) |
| Reaction to fire | Meets ASTM E84 and BS 476 (class not stated) | — | ISODEC product page (Duct Excel) |
| Model | Length (mm) | Dimensions | Pipe size |
|---|---|---|---|
| A2Q (16/24/32 kg/m³) | 10000 | Insulation 25 or 50 mm | Ø 76–508 mm (3–20") |
| A2Q (48 kg/m³) | 6000 | Insulation 25 or 50 mm | Ø 76–508 mm (3–20") |
| A2X (16/24/32 kg/m³) | 10000 | Insulation 25 or 50 mm | Ø 102–508 mm (4–20") |
| A2X (48 kg/m³) | 5000 | Insulation 25 or 50 mm | Ø 102–508 mm (4–20") |
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