The metal PYROLINE® Rapid fire protection duct provides reliable fire protection in walls and ceilings, as well as in suspended installations. An important feature is that the inner coating expands in the case of fire and blocks off smoke and fire. The duct thus fulfils fire protection classes I30 to I120.

Thanks to its low material thickness, the duct has slender outer dimensions with a high-volume inside. The result is a reduced weight which means easier handling when installing.


OBO also offers the metal duct in the dimensions 40 x 70 mm, including accessories. Even in the small format, the PYROLINE® Rapid can be handled perfectly during installation, ensuring safety.

New fittings

Matching fittings, such as internal and external corners, flat angles, rising and falling vertical bends as well as matching end pieces and T branches, round of the duct as a complete solution.

System benefits

  • Prevention of fire spreading

  • Protects escape routes against cable fires

  • Successful and active prevention of fire spreading

  • Protects escape routes against cable fires

  • Fulfils fire protection classes I 30 to I 120

  • Simplest mounting

Now available: PYROLINE® Rapid in pure white

The PYROLINE® Rapid metal fire protection duct is now also available painted in pure white.

Mounting video PYROLINE® Rapid

Additional information