Rocvent - Mine and Tunnel Ventilation



The material is welded in purpose-built, high frequency machines to form flexible tubes.



<li>Tube diameters vary from 300mm to 3000mm (12 inches to 120 inches). </li> <li>Standard lengths: 15m, 7.5m (50ft, 25ft)</li> <li>Custom lengths available. </li> <li>A separate suspension tab is radio frequency welded to the tubing.</li> <li>The ventilation duct/tubing is certified by Natural Resources Canada under Certification # 1181. The ducting/tubing also conforms to CAN/CSA-M427-M91.</li> </ul>

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Vent Loss

Atkinson Equation for Vent Duct Losses @ 0.075. Use the Excel spreadsheet to make your calculations.

Vent Loss Calculator