Duct fixtures > Balancing plenum boxes > VAL damper plenum box
 

VAL damper plenum box

The VAL damper plenum box increases the terminal dampening of supply and exhaust air vents and limits the transfer of airborne sound from one room to another.  

VAL is made of galvanised sheet steel and the dampening material is polyester wool (Dacron) that does not give fibres or particles in the air. VAL is delivered with insulated joint muffs.


Features:

  • Damper plenum box for terminal dampening of supply and exhaust air vents, for example in residential ventilation
  • Dampening material acoustic Dacron that does not emit fibres or particles into indoor air
  • Insulated joint muffs

Quick guide

VAL Dimensions

Airborne sound insulation



VAL limits the transfer of airborne sound from one room to another.

Sound attenuation for air ducts between rooms Dn,e,wdB:



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