Aluminium Four Way Diffusers – Navajyothi Air Flow

Brand

Navajyothi Air Flow

Model

NJ-Alu Four Way Diffusers

Application

Supply and return air distribution for HVAC ventilation and air-conditioning systems.

Product Description

The Aluminium Four Way Diffuser (AFWD) is designed for efficient supply air distribution in HVAC systems. It delivers air uniformly in four directions, ensuring excellent room air mixing, low noise operation, and high thermal comfort. Manufactured from high-quality extruded aluminium alloy, the diffuser is suitable for commercial, institutional, residential, and industrial applications. It is available with removable cores and optional opposed blade dampers (OBD) for easy airflow balancing.

Description

▪ The frame and blades are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.

▪ Diffusers shall be cone type with each cone manufactured by extruded aluminum louvered profiles or one piece die formed aluminum construction – arranged in concentric cones to deflect air equally in four directions.

▪ Louvered type core is fixed to the frame with aluminum pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation, maintenance and damper adjustment.

Material Construction & Technical Specifications

Parameter	Specification
Product Name	Aluminium Four Way Diffuser (AFWD)
Material	Extruded Aluminium
Construction	Precision mitred corner frame with removable core
Frame Width	30mm & 70 mm (Standard)
Frame Thickness	1.2–1.5 mm
Core Type	Removable core Four-Way Cone Pattern
Core Thickness	0.9 – 1 mm
Air Discharge Pattern	4-Way Horizontal
Standard Neck Sizes	150×150 mm to 450×450 mm
Ceiling Module Sizes	595×595 mm, 600×600 mm
Custom Sizes	Available on request
Mounting	False Ceiling / Exposed Ceiling / Grid ceiling
Damper Option	Opposed Blade Damper (OBD) (Aluminium or GI)
Plenum Box	GI Powder-Coated Plenum (Optional)
Finish	Smooth Powder Coated / Natural Anodized
Powder coating Colours	RAL 9016, Standard White or any other RAL Shades

Optional Accessories

Opposed Blade Damper (OBD) GI Or Aluminium
GI Plenum Box

Applications

Commercial Office Buildings, Shopping Malls, Hotels, Hospitals
Educational Institutions, Airports, Residential Apartments, Conference Rooms
Retail Stores, Banks, Clean Office Environments

Size (mm)	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)
150×150	125	140	220	285	48
225×225	200	215	295	360	48
300×300	275	290	370	435	48
375×375	350	365	445	510	48
450×450	430	445	530	595	48
605×605	355	365	455	595	48
600×600	275	290	455	595	48

Std. Size mm	A mm	B mm	C mm	D mm	E mm	F mm
150 × 150	131	144	290	45	137	85
225 × 225	207	220	365	45	212	85
300 × 300	278	294	440	45	285	85
375 × 375	355	369	515	45	360	85
450 × 450	430	444	595/600	45	435	85

Performance data table :

Neck Size	Neck Vel m/s	1.0	1.5	2.0	2.5	3	3.5
150×150	Cfm	45	75	90	122	148	172
	Ps in mm	0.69	1.09	2.10	3.57	5	6.8
	Throw (m)	1.2-1.7	2.2-3.4	2.4-4.2	3-4-5	4.2-5.8	4.2-6
	NC	<20	<20	<30	<30	<40	<40
225×225	Cfm	102	158	210	265	320	370
	Ps in mm	0.69	1.35	2.6	4.24	6	8.21
	Throw (m)	1.2-1.8	2-2.4	2.6-5	3.5-6.5	5-9	7-11
	NC	<15	<20	<30	<35	<40	<45
300×300	Cfm	185	280	375	470	568	665
	Ps in mm	0.69	1.74	3.16	5.30	7.45	10.3
	Throw (m)	2.2-5.2	3.4-6.8	4.5-8.5	5.2-9.4	6-10	7-11
	NC	<20	<20	<30	<35	<40	<45
375×375	Cfm	290	442	590	740	890	1038
	Ps in mm	1.02	2.08	3.51	5.65	8.17	11.45
	Throw (m)	2.4-5.9	4.2-8.4	5.8-10	6.2-10.5	7-14	8-15
	NC	<20	<20	<30	<40	<45	<50
450×450	Cfm	420	630	845	1060	1275	1490
	Ps in mm	1.03	2.08	3.86	6.39	9.25	11.47
	Throw (m)	3-7.8	4.8-10	7-12	8-14	8-15	9-16
	NC	<20	<30	<35	<40	<45	<50