Bearing of the lamellae in fire dampers
Sector: Fire safety technology, building technology
Environmental influences such as heat, cold, dirt or dust must not impede the function of the lamellae. If used frequently – or indeed rarely – this correct opening must not be impeded. Jamming caused by corrosion,
dirt or the influence of certain temperatures must be prevented.
Bearing with PERMAGLIDE® P180 plain bearing bushes
PERMAGLIDE® P180 plain bearings, which are implemented in pairs, are
an ideal solution for the bearing of the lamellae in fire dampers.
The maintenance-free PERMAGLIDE® P180 plain bearings prevent the bearing
from corroding and freezing solid, and prevent the lubricant from dripping out
due to heat. The bearing clearance may not become too low, e.g. due to high
temperatures, as this can lead to the lamellae becoming stuck. The reliable
function of the fire damper – even after long periods of use – is guaranteed
by using PERMAGLIDE® P180 plain bearings.
Advantage: Reliable function of the bearing thanks to PERMAGLIDE® P180 plain bearings
- Impervious to temperature, dirt and dust
- Maintenance-free, even when used very frequently or rarely
- Protected against corrosion
Use of PERMAGLIDE® P180 plain bearings in fire dampers
Bearing of the lamellae pivots:
PERMAGLIDE® bushes in the locating hole of the lamellae
- Universally usable plain bearing material for dry and lubricated applications
- High rigidity
- Durability
- High chemical resistance
- Good emergency running properties
- Material: Bronze sintered onto a steel base, with friction-reducing additives (PTFE).
The P180 sliding layer system provides sufficient protection even in damp environments. It is chemically inert and prevents fluid ingress into the material. This effectively suppresses the swelling of the material. As a result, the material exhibits high dimensional stability during application.
opened, or if so, then very rarely. Fire dampers are installed in building
ventilation systems in order to prevent fire and smoke spreading via ventilation
lines. In the event of fire, fire dampers are opened so that toxic fumes can be
Fire damper Ventilation system extracted. Fire dampers are sometimes
mandatory as safety components according to § 14 of the German Model
Building Ordinance (MBO). Fire dampers are also used for normal ventilation in
building technology.