Light gauge ducting systems

Non-return valve


Non-return valves are designed to avoid backflow of air in an installation for use in overpressure, under-pressure and pressureless systems.

The inner shut-off plate in 3 mm is mounted on a lever with adjustable counter-weight.

With ball bearing on axle of inner plate for smooth running and airtightness.


Cut sheets stitch-welded and spot-welded, with 6 mm edges for lock rings.

The displayed prices exclude VAT and are for informational purposes only, subject to change without prior notice. Images of the products used are 3D illustrations, small deviations are therefore possible. Although all the measurements are as precise as possible, some variations may occur during the production processes.