What fire classes are there for pipe insulation?
Our range of pipe insulation can be divided into the following fire protection classes:
- CLIMATUBE® zip, CLIMATUBE® easy, CLIMATUBE® basic, CLIMATUBE® protect, CLIMATUBE® silence = fire protection class E (normally flammable)
- CLIMATUBE® flex = BLs3d0 (flame retardant)
- CLIMATUBE® wool = A2Ls1d0 (non-combustible)
The classification of pipe insulation follows the European standard DIN EN 13501-1 and is subdivided as follows:
European classes
A – Not flammable, no contribution to the fire
B – flame retardant, very limited contribution to fire
C – flame retardant – limited contribution to the fire
D – Normal flammability – acceptable contribution to the fire
E – Normal flammability – acceptable fire behaviour
s – Smoke generation
s1 – Low smoke generation
s2 – Average smoke generation
s3 – High smoke generation
d – Burning droplets
d0 – No burning droplets within 600 seconds
d1 – No burning droplets with afterflame time greater than 10 seconds within 600 seconds
s2 – No performance determined
L – Fire behaviour class for pipe insulation materials