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Product category
Product name
Plenum box
Duct connection size
Function
Connection
Working setup
Article name
Air volume
qv
Room attenuation
Dr
dB
Adjustment pressure
Δp
Pa
Description

NC19-125+MBB-100-125-S

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Nozzle diffuser
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NC19 is a circular diffuser with individually adjustable nozzles. The diffuser is suitable for the horizontal supply of cooled air, where great flexibility in the dispersal pattern is required. The diffuser can also be set to a vertical supply air pattern, enabling supply of heated air.
Installing a NC19 diffuser in a plenum box type MB can help to achieve a stable flow of air to the diffuser as well as realise the potential for individual adjustment.
Damper type B is an unique linear cone damper which allows to use the full operational area (0-100%) and allows to balance with a high pressure drop over the box with low sound generation. Furthermore the construction of the damper gives an accurate and reliable measurement.
Damper type C is with a rotating blade damper for supply air. Typically used in applications that don’t require a high balancing pressure in the plenum box.

  • Adjustable dispersal patterns
  • No pressure change for different dispersal patterns
  • Suitable for horizontal or vertical supply air patterns
  • Plenum box with several damper options

Face velocity
v
m/s
Total pressure loss
Δpt
Pa
Sound power level
LwA
dB(A)
Sound pressure level
LpA
dB(A)
Throw
L0.2
m
  • Pressure and sound power diagram
    MISSING
    Hz 63 125 250 500 1K 2K 4K 8K
    Coct 10 3 2 0 -7 -15 -22 -27
    ΔL 20 16 6 15 20 20 19 23

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