CRACK is an architectural, square, swirl air diffuser used for introducing or evacuating air.
The diffuser is recommended for installations with constant or variable air flow.
CRACK is used in spaces with a height of <4.2 m.
The design of the product determines a high level of induction rate.
The front plate has the external dimensions 595×595 mm.
The diffuser blades are fixed and arranged radially at the front plate level.
For a uniform appearance of the enclosures, the CRACK diffuser can also be used for air evacuation.
The product is delivered with the following elements: mounting bracket, fixing screw, screw cover cap and sealing gasket.
1- Masking cap
2 - Fixing screw
3- CRACK diffuser
4 - Bracket (mounting crossbar)
5 – Plenum box (opțional)
6 - Perforated damper (optional)
Ak [m²] - The free surface
D [mm] – Diameter of plenum connection
NR [dB (A)] - Noise level without room attenuation
∆Pt [Pa] - Pressure loss
0 ° blade position - damper open
45 ° blade position - damper inclined
90 ° blade position - damper closed
Values are provided for a plenum diffuser, horizontal (side) connection to duct.
The diffuser can be supplied with a plenum connecting to a circular duct with a horizontal connection.
The plenum is provided with suspension elements (lugs) and bead roll on the spigot, for easy fixing of the flexible duct.
Optionally, a perforated damper can be mounted on the plenum connection to balance the air flow.
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 with 6 mm thick elastomeric rubber.
The perforated damper is mounted on the adapter spigot and has the role of balancing the air flow.
The diffuser can be mounted in 600 x 600 mm T-bar false ceiling, continuous ceiling or suspended.
The fixing of the plenum diffuser is done by using a central screw screwed into the mounting bracket, positioned inside of the plenum box.
Installation in T-bar suspended ceiling
Installation in continuous ceiling
Suspended in the ceiling