Protan Ventiflex Shaft

Protan Ventiflex Shaft has been developed for the vertical supply of fresh air through a shaft construction.

Vertical supply of fresh air

Some underground constructions require supply of fresh air through vertical shafts. To accommodate this challenge, Ventiflex can supply a shaft-ducting system, designed to meet the unique demands such a system requires.

Present day, the deepest installation is 1,400 meters from the surface, expressing the quality and reliability of our design.

Flexible solutions

Protan Ventiflex Shaft is made with two, three or four suspension ribs, which are secured to wires using special non‑slip hooks and clips. There is a turnbuckle at one end of the wire to ensure correct alignment. Our solutions are flexible, and we supply duct lengths for both excavation and static installations. We also offer any duct diameter from ø200 mm to ø3,200 mm in all duct lengths.

In the worst case, a lack of fresh air in mines and tunnels can bring the project to a standstill.

In order to ensure efficient delivery of our best-selling ventilation systems, the products we offer are divided into three categories.

Ventiflex items in stock

Delivery time* for our in stock ventilation systems is 2 days.

Duct qualities Diameter Length pr section (meter) Coupling Hooks Application
V6298  1000 mm  10 VF coupling  Snap hooks Mining
V6298  1000 mm 10 LP coupling  Snap hooks Mining
V6298  1200 mm 10 Zip coupling  Snap hooks Mining
V6298  1200 mm 10 LP coupling  Diamond hooks Mining

Ventiflex standard

Delivery time* for our standard ventilation systems is maximum 10 days.

Duct qualities  Diameter Length pr section (meter) Coupling Hooks Application
V6298 800 mm 5, 10, 20, 25, 50, 100, 200 Optional     Snap hooks      Mining
V6298 1000 mm 5, 10, 20, 25, 50, 100, 200 Optional   Snap hooks Mining
V6298 1200 mm 5, 10, 20, 25, 50, 100, 200 Optional Snap hooks Mining
V6698  1400 mm 5, 10, 20, 25, 50, 100 Optional Snap hooks Tunnel 
V6698  1600 mm 5, 10, 20, 25, 50, 100 Optional Snap hooks Tunnel 
V6698  1800 mm 5, 10, 20, 25, 50, 100 Optional Snap hooks Tunnel 
V6698  2000 mm 5, 10, 20, 25, 50, 100 Optional Snap hooks Tunnel 

Ventiflex customised

We are able to deliver our ventilation ducts in many dimensions and length. We deliver also different qualities, couplings and hooks.

Please contact us for solutions and delivery time.

---

Regardless of category, we will always strive for shortest possible delivery time for all our customers.

Download Terms of sale and delivery here.

* Delivery time is defined as the time from receipt of written order until ready Ex Works (EXW) factory at Nesbyen, Norway.

Get details on Specifications for Ventiflex ventilation ducts here.

Download Calculated Burst Pressure for Ventiflex here.