RN 900x400

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 shape and an insert piece of perforated steel or expanded mesh. Reinforced frame design provides 100% grille rigidity. Special vane design prevents water ingress into a ventilation system. A built-in protecting mesh prevents ingress of foreign objects into a ventilation system. Polymer or anodized grille coating ensures weather-resistant properties. Non-standard sizes may be ordered.
MODIFICATION
Available modifications with an adapter (A) for connection to air ducts. Available modifications with versatile fixing (u) for fast mounting.

Air flow distributions

fixed (45°)

Characteristics

Parameter	RN 900x400	Measurement unit
Air pass	0.164	mm²
Connected air duct size	900х400	mm
Adjustment	nonadjustable	-
Form	rectangular	-
Material	aluminum (profile)	-

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit
L	900	mm
H	400	mm

Additional diagrams

Calculation formula		Correction factor К
L_WA = L_WAO x K		S_ap [m²]	0.03	0.05	0.07	0.1	0.15	0.2	0.3	0.4
L_WA = L_WAO x K		K [dB(A)]	4.5	3	1.5	0	+1.5	+3	+4.5	+6

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 - correction factor for sound power level calculation depending on air pass [dB(A)];
S_ap - air pass [m²];
V - rated speed [m/s].

Legend

VENTS RN 900x400