Our Bi-Vent duct offers a low profile solution for mine shafts where vertical height is limited. The duct allows airflow through two connects tubes. This decreases vertical diameter of the duct, while increasing horizontal diameter of the duct, allowing increased airflow and more vertical clearance in the shaft. The Bi-Vent ducting is made out of PE and has our patented equaliser holes along the center wall. This innovative design allows the bag to remain operational even if one side of the bi-vent is damaged or torn.
Bi-Vent comes in 3 main sizes: 1045mm (1400mm equivalent), 910mm (1220mm equivalent) and 795mm (1067 Equivalent). Other sizes can be made to order.