Semi Rigid Spiral Duct are machine formed in a continous spiral from aluminium strips, creating an airtight tube whice can easily be cut to length by hand to conform to a desired duct route, without altering its full circular cross section.
- → Type - Plain Uninsulated
- → Material - Aluminium
- → Maximum Velocity - 20 meters / sec
- → Maximum Postive Pressure - 1.5 kPa
- → Maximum Negative Pressure - 1.5 kPa
- → Sizes - 75 mm to 300 mm Diameter