TÜV Rheinland proved air tightness class D forAir Spiralo® KEN-LOK ducts and fittings

Air Spiralo® KEN-LOK: the solution for ventilation systems with a higher air tightness

Modern ventilation systems are characterised by higher demands on air tightness saving energy and the need for quick installation. Application of KEN-LOK products implies an even higher air tightness and an energy-efficient ventilation installation. By this you will be prepared for future regulations.

Air Spiralo® anticipates on future developments related to air tightness by extending the KEN-LOK product program with:
    • Ducts and fittings available up to Ø1250 mm
    • Significant stock expansion (from Ø 80 up to Ø 1250 mm)
    • Independent TÜV-tesing
    • ETIM article classification

TÜV Rheinland proved that a ventilation system mounted with Air Spiralo® KEN-LOK ducts and fittings complies to air tightness class D (March 2013).

View the video The brand KEN-LOK



Products in the KEN-LOK program

Air Spiralo® KEN-LOK ducts
    • Rubber profile in the folded seam
    • Diameters Ø63 - Ø1250 mm (incl. non-CEN-diameters)
    • Fluid and air tight
    • Standard in galvanized steel, stainless steel and aluminium on request

Air Spiralo® KEN-LOK fittings
    • Double lip rubber seal at each side of the fitting
    • Diameters Ø63 - Ø1250 mm (incl. non-CEN- diameters)
    • Rigid construction, no sharp edges due to ‘Soft-Edge’ (rolled over edge)
    • Standard in galvanized steel, stainless steel and aluminium on request

Ease of installation

Through the KEN-LOK program of Air Spiralo® quicker mounting and less mounting material. Tape is not needed, so a dry and clean surface is no longer a necessity. Besides you significantly save on the mounting material. You can easily adjust, even during the mounting, by turning the fitting. The ducts and fittings are easy to install, even in smaller rooms, and are ideal for visible places.

View video Mounting instruction KL ducts and fittings



Soft Edge technology

Each Air Spiralo® KEN-LOK fitting is completed with a double lip rubber seal at each side of the fitting. The double lip rubber seal is integrated with the ‘Soft-Edge’ technology (rolled over edge), a reliable technique that guarantees a correct connection. For lack of sharp edges application of the ‘Soft-Edge’ technology also implies a user-friendly mounting of fittings.


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