Ductulator - Duct Diameter Calculator
Enter the required volume & velocity to see the necessary duct diameter.
| m/sec | ||
| mm |
Health and Safety Executive recommended minimum duct velocities:
| Type of contaminant | Indicative duct velocity, m/s |
|---|---|
| Gases and non-condensing vapours | No minimum value |
| Condensing vapours, fume and smoke | Up to 10 |
| Low or medium density, low moisture content dusts (plastic dust, sawdust), fine dusts and mists | Up to 15 |
| Process dust (cement dust, brick dust, wood shavings, grinding dust) | Around 20 |
| Large particles, aggregating and damp dusts (metal turnings, moist cement dust, compost) | Around 25 |