ONF 900x800

Description
Characteristics
Downloads
Dimensions
Additional diagrams
Legend

Description

APPLICATION	DESIGN
Supply and exhaust ventilation, heating and air conditioning networks in industrial, commercial and domestic premises.	Made of high-quality extruded aluminium. Polymer or anodized grille coating ensures weather-resistant properties. Non-standard sizes may be ordered. Grilles above 450 mm are equipped with a partition for extra rigidity (ONFS series).
MODIFICATION
Available modifications with an adapter (A) for connection to air ducts. Available modifications with special springs (p) for fast mounting.
Air flow distribution
	vane deflection angle - 45°

Characteristics

Parameter	ONF 900x800	Measurement unit
Air pass	0.426	mm²
Connected air duct size	900х800	mm
Adjustment	nonadjustable	-
Form	rectangular	-
Material	aluminium	-

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit
L	900	mm
H	800	mm

Additional diagrams

Calculation formula		Correction factor K
L_WA = L_WAO x K		S_ap[m²]	0.005	0.01	0.02	0.03	0.05	0.07	1
L_WA = L_WAO x K		K [dB(A)]	-13	-9	-6	-4.5	-3	-1.5	0

Designation:

ΔP - pressure loss [Pa];
L_WA - sound power level [dB(A)];
L_WAO - sound power level for air pass 0.1 m² [dB(A)];
K_L - correction factor for sound power level depending on air pass [dB(A)];
A_K - air area [m²];
V - rated speed [m/s].

Legend

VENTS ONF 900x800