JD is an adjustable nozzle jet diffuser that allows air to be introduced at a long jet length.
Suitable for heating or cooling in spaces with long distances between the diffuser and the occupied area, concert halls, museums, etc.
JD can be mounted on a wall, ceiling or duct.
The diffuser is recommended in various ventilation applications for the introduction of air.
Ak [m²] - The free surface
Veff [m/s] - Air velocity in the diffuser
NR [dB (A)] - Noise level without room attenuation
X [m] - The length of the air jet at a speed of 0.5 m/s
∆Pt [Pa] - Pressure loss
For more sizes see the Technical Data Sheet (bottom of the page).
The diffuser can be supplied with a plenum connecting to a circular duct with horizontal connection.
The plenum is provided with suspension elements (lugs) and bead roll on the spigot, for easy fixing of the flexible duct.
Adapter (plenum box)
The adapter is made of galvanized steel sheet Z140 and is equipped with 4 lugs for suspension.
On request, the plenum can be insulated inside with 6 mm thick elastomeric rubber.
The diffuser can be mounted on a wall, ceiling or duct. Fastening is done with screws.
Circular duct installation
Rectangular duct installation with circular connection