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Aluminium Linear Bar Grille

Navajyothi Air Flow > Products > GRILLES > Aluminium Linear Bar Grille
Brand

Navajyothi Air Flow

Mpdel

NJ-Linear Grille

Application

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

Product Description

The Aluminium Linear Bar Grille is designed for supply and return air applications in commercial, industrial, and residential HVAC systems. Manufactured from high-quality extruded aluminium profiles, it offers excellent airflow performance, durability, and an elegant architectural appearance.

Materia Construction & Technical specifications

Parameter Specification
Material Extruded aluminium construction offering corrosion
resistance, rigidity, and lightweight durability.
Frame Thickness 1.2–1.5 mm
Blade Thicknes 1.2 mm thick , Head Thickness 6 mm , blade height 16 mm
Flange standard    19/16  & 25/16 , 30 /16
& 50mm flange also available as per requirement
Blade Type Fixed Linear Bars
Bar Orientation Horizontal / Vertical
Pitch 12mm spacing as standard
Deflection 0°, 15°, 30°, 45° (Optional)
Finish Standard smooth powder-coated finish (such as white RAL
9010) or custom RAL Shades
Mounting Screw Fixing / Concealed Fixing / Clip Fixing
Air flow control Optional collar dampers , Alumium and Gi opposed blade
type for positive airflow management

Standard Sizes

Width (mm) Length (mm)
50 As Required
75 As Required
100 As Required
125 As Required
150 As Required
200 As Required
250 As Required
300 As Required

Custom sizes available on request.Maximum single piece length 1830 mm can be supplied as standard

Linear Bar Grilles (Blade) Data

Bar Deflections Bar Head Thickness Bar Depth Drawing
0 degree 5 mm 16 mm 0 degree drawing
15 degree 5 mm 16 mm 15 degree drawing
30 degree 5 mm 16 mm 30 degree drawing
45 degree 6 mm 16 mm 45 degree drawing
2 way 5 mm 16 mm 2 way drawing

Grill Perofmance Table

Height (mm) Neck Vel m/s 2 2.5 3.0 3.5 4 4.5
50 Cfm 175 215 255 300 340 380
Ps in mm 0.15-0.2 0.2-0.25 0.2-0.26 0.25-0.28 0.3-0.35 0.4-0.45
Throw(m) 2.7-4.5 3-5.5 4-6.5 4-7 4.6-7.5 5-7.8
NC <15 <15 <15 <20 <25 <30
100 Cfm 260 320 385 445 510 570
Ps in mm 0.15-0.2 0.2-0.25 0.2-0.26 0.3-0.35 0.39-0.42 0.51-0.55
Throw(m) 4-7 5-7 5-8 6-8 6-9 7-10
NC <15 <15 <15 <20 <25 <30
150 Cfm 350 420 505 588 670 755
Ps in mm 0.15-0.2 0.2-0.25 0.2-0.27 0.36-0.4 0.46-0.5 0.58-0.6
Throw(m) 4.5-7.5 5-8 5.5-9 6.5-10 7-10 7.5-11.5
NC <15 <15 <15 <20 <25 <30
200 Cfm 420 520 625 725 830 930
Ps in mm 0.2-0.25 0.22-0.25 0.3-0.35 0.38-0.42 0.55-0.6 0.6-0.65
Throw(m) 5-8 5.5-9 6.5-10.5 7.5-12 8-12 8-17
NC <20 <20 <20 <25 <25 <30
250 Cfm 500 620 740 870 990 1110
Ps in mm 0.2-0.25 0.25-0.3 0.33-0.38 0.43-0.47 0.52-0.58 0.58-0.62
Throw(m) 5.5-9.5 6.5-10 7-11 7.5-12 8.5-13 9-14
NC <20 <20 <20 <25 <25 <30
300 Cfm 585 730 870 1015 1160 1310
Ps in mm 0.2-0.25 0.31-0.35 0.36-0.4 0.48-0.52 0.62-0.65 0.68-0.72
Throw(m) 6-10 7-11 8-12 7.5-13 9-13.5 9-15
NC <20 <20 <25 <30 <35 <40
Throw (meters) is measured for a terminal velocities of 0.75, 0.5 m/sec
Data based on one meter unit length of the grille
Face velocity is measured in m/sec.

Without End Flange

One End Side Flange

Both Side End Flange

Optional Corner Grilles

Vertical Angles

90° Horizontal

Standard 90° Horizontal mitered corner available for floor, sill and ceiling applications in 0° and 15° One Way throw without damper.

Angle (90° - 180°)

Available for floor, sill and ceiling applications includes an angle greater than 90° and less than 180° available in 0° and 15°.

90° Vertical Outside

Available for wall application at the junction of two outside walls with a standard of 90° angle. Available in 0° and 15°

90° Vertical Inside

Available for wall application at the junction of two inside walls with a standard of 90° angle. Available in 0° and 15°

Optional Curved Linear Bar Grilles