Perforated grille with access door, used for introducing or evacuating air.
The PF-D grille is intended for wall or false ceiling mounting.
The opening system is click type (opening/closing by pressing) which facilitates access.
The central part of the grille is provided with circular perforations with a diameter of 5 mm.
The grille is produced as standard without mounting holes. Optionally, mounting holes can be requested on the visible grille frame.
Grille in closed position
Grille in open position
Ak [m²] - The free surface
Veff [m/s] - Air velocity in the grille
NR [dB (A)] - Noise level without room attenuation
X [m] - The length of the air jet at a speed of 0.2 m/s
∆Pt [Pa] - Pressure loss
The grille can be delivered with a connecting plenum to the circular duct, with horizontal or vertical connection.
The plenum is provided with suspension elements (lugs) and bead roll on the spigot, for easy fixing of the flexible duct.
On request, the product can be delivered with G4 air filter or adjustment damper.
Adapter (plenum box)
The adapter is made of Z140 galvanized sheet metal and is equipped with lugs for mounting.
The plenum is available in two options, uninsulated or insulated with 6 mm thick elastomeric rubber.
G4 air filter with frame (F-R)
G4 air filter with frame, made of aluminum, used for air filtration with mounting on the grille.
Opposed blade damper (OBD)
The control damper is provided with opposable blades and gears, it is mounted on the grille connection.
The grille can be mounted on the wall or in the false ceiling.
Installation in wall or continuous ceiling
Installation in T-bar suspended ceiling