Air Exhaust System
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This page explains how Exhaust Ductwork 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 network of ducts designed to transport exhaust air, fumes, or contaminants from industrial processes or equipment to the outside environment.
Technical details and manufacturing context for Exhaust Ductwork
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 100–2000 mm | Standard sizes for ductworkISO 7805 |
| Wall Thickness | 0.5–3.0 mm | Thicker for higher pressure or corrosive mediaISO 7805 |
| Operating Temperature | -40–400 °C | Above 400°C requires special alloys |
| Operating Pressure | -0.1–0.5 MPa | Negative pressure for exhaust systems |
| Air Velocity | 5–20 m/s | Higher velocity increases noise and pressure drop |
| Leakage Rate | ≤0.5 % | At 400 Pa test pressureEN 1507 |
| Corrosion Resistance | ≥500 h | Salt spray test for coated surfacesISO 9227 |
| Material Grade | 304/316L | 316L for higher corrosion resistanceASTM A240 |
| Flange Type | PN6/PN10 | PN10 for higher pressureEN 1092-1 |
| Surface Finish | Ra≤3.2 μm | Smoother for cleanroom applicationsISO 4287 |
| Weight per Meter | 5–50 kg/m | Depends on diameter and wall thickness |
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: | -500 Pa to +2000 Pa (typical industrial range) |
| flow rate: | Up to 50 m/s velocity (to prevent material buildup) |
| temperature: | -40°C to 400°C (depending on material) |
| slurry concentration: | Not applicable (dry particulate only, max 100 mg/m³) |
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.
Manufacturer profiles associated with Exhaust Ductwork.
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.
The ductwork can be made from galvanized steel, stainless steel, aluminum, or fiberglass reinforced plastic (FRP). The choice depends on the corrosiveness, temperature, and mechanical requirements of the application. For example, stainless steel grades 304 or 316L are offered for higher corrosion resistance, but the specific grade must be confirmed for your process conditions.
The nominal diameter ranges from 100 mm to 2000 mm, and wall thickness from 0.5 mm to 3.0 mm, as per ISO 7805. However, these are reference ranges; the exact dimensions should be selected based on the required airflow and pressure drop, and verified with the supplier.
The leakage rate is specified as ≤0.5% at a test pressure of 400 Pa, according to EN 1507. To verify, you should request test reports or conduct on-site testing as per the standard. Always confirm that the actual product meets this requirement for your specific installation.
Regular inspection for corrosion, leakage, and blockages is recommended. Check for increased pressure drop, visible rust, or damaged seals. Clean ducts as needed to prevent buildup. Any signs of structural weakness or excessive leakage should be addressed immediately to maintain safe operation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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