Skip Navigation LinksLindQST / Air diffusion calculator
Product category
Product name
Type
Duct connection size
Function
Connection
Working setup
Air volume
qv
Room attenuation
Dr
dB
Description
Usercode

HLD

HLD-0-250
  • Product information
  • Results
  • View in 3D
MISSING
Perforated diffuser

HLD is a circular high level displacement diffuser adapted for industrial requirements. HLD is equipped with a damper function, which makes it possible to vary the supply air pattern between horizontal or vertical, depending on whether heating or cooling is required. The switch can be made manually, or it can be automated using several types of motor. The external dimensions of the diffuser are adapted to the connection, making it easy to integrate into an ordinary duct system. HLD can be suspended from or installed on a wall or column using the installation bracket, which ensures great flexibility no matter how premises are used.

  • Suitable for both cooling and heating
  • Horizontal and vertical dispersal patterns
  • High capacity
  • Flexible positioning
  • Can be supplied with an electric motor
  • Can be supplied with a thermal actuator
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 4 -3 -3 1 -6 -16 -29 -37
    ΔL 19 14 5 3 2 1 2 1
Logo HLD

© Copyright 2026, Lindab AB. All rights reserved. LindQST.com is owned by Lindab AB all images, technical data and other material found on this site belongs to Lindab AB. Please contact Lindab if you wish to use our material in other matters.

Need help?

If you are logged in, you can invite & work together with a Lindab Representatives in your projects using this function.