Fire Dampers – Duct Sleeves – OMNIE Underfloor Heating, Heat Pumps & Ventilation
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Fire Dampers – Duct Sleeves
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Fire Dampers – Duct Sleeves

DS MVHR 18

Horizontal Application

 

Designed to protect ventilation duct that passes through fire rated walls made from block, brick, concrete or hollow plasterboard.

A reinforced covering contains intumescent material that expands inwards, crushing PVC duct in the heat of a fire.

They can be easily cut with a sharp knife and should be installed level with the surrounding wall.

Performance 

  • BS476 PART 22 (1987):
  • 130mins in solid walls
  • 67mins in hollow walls
  • 4 hours in concrete or block walls

Horizontal fire damper installation:

Fits withØ (mm)Length
Ø 125mm pipe125mm150mm
Ø 125mm pipe125mm200mm
Ø 150mm pipe150mm150mm
Ø 150mm pipe150mm200mm
75mm75mm150mm
75mm75mm200mm

Vertical Application 

 

A surface mounted circular metal unit for use around PVC or steel duct that pass through fire rated ceilings or walls.

The unit consists of a hinged, two part metal collar containing intumescent material with a quick release pin for easy fitting around pipes.

Fixing lugs are supplied for simple attachment to block, brick concrete or plasterboard.

Performance

BS476 PARTS 20 & 22 (1987):
• 4 hours integrity

Vertical fire damper installation:

Fits withØ (mm)Depth
Ø 125mm pipe125mm40mm
Ø 150mm pipe150mm40mm
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