Plenum boxing ВД
Purpose
Plenums are intended for attaching air distribution devices (vortex diffusers, jet nozzles, or regular round diffusers) to the ductwork system in supply-exhaust ventilation or air heating.
Design and Materials
They are manufactured from galvanized steel. The connection can be both lateral and top.
The inlet spigot D1 is made for a male connection with an external diameter -3 mm from the nominal diameter. The outlet tapping D2 should be sized +3 mm to the air distributor connection diameter.
Additionally, it can be equipped with:
- A perforated sheet located diagonally inside the plenum for even distribution of the airflow across the entire plane.
- A throttle valve for regulating the supplied air volume.
- An adjustable damper from the inside (perforated blade, adjustment handle extending inside the plenum).
- A traverse (a plate from the bottom for attaching diffusers through a central screw).
- Insulation inside the plenum to reduce noise flows.
- Powder coating inside/outside according to the RAL catalog.
Manufacturing
According to the dimensional requirements of AxA, but not less than D2+20mm, the height H should be no less than D1+50mm (for lateral connection). If the connection is top-mounted, then the height can be no less than 100mm.
Example of Ordering and Installation
Plenum Box VD 350x350x300h/BP/P/T/I/DK d-250/ex. d-317 (RAL 9005M/9005M) - plenum dimensions 350x350, height 300mm (d-250+50).
BP - lateral connection (TP - top connection);
P - perforation;
T - traverse;
I - insulation;
DK - throttle valve (RA - adjustable damper from the inside);
ex. d-317 - outlet diameter 317mm;
RAL 9005M - painted inside and outside in black color;
For easier installation of plenums to building structures, there are mounting plates on the lateral faces.
Equipment
It is possible to equip with additional elements (options):
- Perforated sheet;
- Throttle valve instead of tapping;
- Adjustable damper;
- Traverse;
- Powder coating;
- Insulation.