Ductwork
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This page explains how Flexible Duct is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A flexible, bendable duct used in HVAC systems to connect rigid ductwork sections and navigate around obstacles.
Technical details and manufacturing context for Flexible Duct
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Inner Diameter | 100–500 mm | Standard sizes; custom diameters available |
| Wall Thickness | 0.5–2.0 mm | Affects flexibility and durability |
| Bend Radius | 1.5–3.0 ×D | Minimum bend radius as multiple of diameter |
| Operating Temperature | -40–150 °C | Continuous operation; peak up to 180°C |
| Air Velocity | 5–30 m/s | Higher velocities may cause noise |
| Thermal Conductivity | 0.025–0.040 W/(m·K) | Insulated type; lower is better |
| Tensile Strength | 10–20 MPa | For fabric layers |
| Flame Retardancy | UL94 V-0 | Self-extinguishing within 10 secondsUL 94 |
| Weight | 0.5–2.5 kg/m | Depends on diameter and insulation |
| Noise Reduction | 15–25 dB(A) | At 1000 Hz, for insulated type |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 2.5 in. w.g. (0.09 psi) static pressure |
| other spec: | Air velocity: Up to 4000 FPM (20 m/s), Bend radius: Minimum 1x duct diameter |
| temperature: | -40°F to 250°F (-40°C to 121°C) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
Standard inner diameters range from 100 to 500 mm, with custom diameters available. Always confirm the exact size required for your application with the supplier.
The operating temperature range is -40°C to 150°C continuously, with peaks up to 180°C. Verify the specific temperature rating for your model, as exceeding limits may cause damage.
The bend radius, typically 1.5 to 3.0 times the diameter, indicates the minimum radius the duct can be bent without restricting airflow or damaging the structure. Tighter bends may reduce performance.
The flame retardancy rating is UL94 V-0, meaning the material self-extinguishes within 10 seconds. This is a material property; confirm the specific product's compliance with relevant standards.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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