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Metally wired reinforced ventilation ducting for positive and negative airflow.
Smooth radius Elbows, Laterals, Wyes, Tees, adapters and transition accessories available.

Protan can deliver also a wide range of ventilation systems for underground and mines structures
Ventilation accounts for more than 40 % of each mine or tunnel overall energy costs and energy cost has increased over 44 % in past years making up 10 % of all operating costs, hence the big expense after labour.

Nordic duct manufacturing quality
Optimised strength
Minimum friction, reducing energy costs
Quick installation
Fire resistant

Transports air through low headroom passages or in tunnels with limited headroom
Two parallel ducts – up to 40 % more headroom
Lower energy consumption and more air to the tunnel face with the same fan output
Secure couplings
Fire resistant

Provides fresh air vertically through a shaft construction
Air-tight and durable transition from vertical to horizontal ventilation system
Custom-made suspension ribs for stability
Flexible solutions for excavation and static installations

Protan Easy to combine with dust collectors
To be used for both suction (negative pressure) and forced-air (positive pressure) ventilation.
Very high burst pressure
Can be used instead of bends if turbulence is accepted.
We develop and test all solutions and their quality at our laboratory in Drammen. The laboratory is approved by world-leading Norwegian certification society Det Norske Veritas (DNV) and follows strict testing and documentation routines.
All systems undergo in-depth monitoring and quality assurance before delivery.
Through innovation and continuous improvement, we always strive to offer the best duct quality that is:

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