Airmaster Flowtec India Pvt Ltd.

Sidco Industrial Estate, Ambattur, Chennai, Tamil Nadu
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Private Limited Company

Airmaster Flowtec India Pvt Ltd. - Manufacturer of sand trap louver with damper, sand trap louver & plenum box un lined in Chennai, Tamil Nadu.

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Products & Services

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Sand Trap Louver With Damper

Ball Bearing

Model ASTL+D

Construction:

  • Frame and blades: 1.5 mm and 1.2 mm thick high quality extruded aluminium profiles.
  • Bird screen: 12 mm x 12 mm x 1.5 mm dia aluminium wire mesh as standard. 12 mm x 12 mm x 1 mm dia G.I wire mesh as optional.
  • Drain: 20 mm dia self drain holes at the bottom of the louver.
  • Damper: Galvanized steel sheet construction.
  • Damper blades: High quality extruded aluminium profiles.
Description:
  • Manufactured from high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Composed two sets of inverted U - channels mounted vertically on two opposite rows.
  • Drain holes of diameter 20 mm are provided in two rows at the bottom of the louver for emptying filtered sand and dust.
  • Fixed with a removable volume control damper to ensure positive control over the fresh air stream.
  • Damper can be operated manually from the back of the louver or can be motor operated.
  • Designed to separate and and dust from the air stream.
  • Generally used for ventilation applications and at inlet duct of air handling unit.

Standard finishes:

  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
Standard sizes:
  • Available in square and rectangular sizes.
  • All combinations of width x height.
  • Non standard sizes are available.
    Width in mm1503004506007509001050120013501500
    Height in mm1503004506007509001050120013501500
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Sand Trap Louver

Ball Bearing

Model ASTL+D+F

Construction:

  • Frame and blades: 1.5 mm and 1.2 mm thick high quality extruded aluminium profiles.
  • Bird screen: 12 mm x 12 mm x 1.5 mm dia aluminium wire mesh as standard. 12 mm x 12 mm x 1 mm dia G.I wire mesh as optional.
  • Drain: 20 mm dia self drain holes at the bottom of the louver.
  • Damper: Galvanized steel sheet construction.
  • Damper blades: High quality extruded aluminium profiles.
  • Filter frame: 20 gauge aluminium sheet.
  • Filter media: Aluminium mesh.
Description:
  • The frame and blades are of high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Composed two sets of inverted U - channels mounted vertically on two opposite rows.
  • Drain holes of diameter 20 mm are provided in two rows at the bottom of the louver for emptying filtered sand and dust.
  • Fixed with a removable volume control damper which ensures positive control over the fresh air stream.
  • Damper can be operated manually by a projected lever or can be motor operated.
  • Aluminium filters with washable expanded aluminium media, as the filter media are available in 12, 25, 40 and 50 mm thickness as required.
  • Designed to separate and and dust from the air stream.
  • Generally used for ventilation applications and at inlet duct of air handling unit.
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Plenum Box Un Lined

Ball Bearing
Construction:

    Frame: 24, 22 or 20 gauge galvanized steel sheet.
    Spigots: Circular spigots of 75 mm length as standard. Square, rectangular and oval shaped spigots are available as option.
    Optional accessories: Volume control damper.

Description:

    Fabricated from 24, 22 or 20 gauge galvanized steel sheet.
    Circular spigots of required diameter and standard length of 75 mm would be fixed to the plenum box. Square, rectangular and oval shape spigots are available as option.
    Plenum boxes with side inlet are standard. Other positions are available as per the site conditions to suit client's specifications.
    Plenum boxes have hemmed edge at the opening for fixing universal mounting brackets.
    Plenum boxes of length of upto two meters can be manufactured with single spigot. For more than 2 meters plenum boxes will be arranged with multiple spigots.
    Volume control dampers can be fitted to the spigots on request.

Model: APB-D

    Dummy plenum boxes: Dummy plenum boxes are available to cover inactive linear bar grilles and diffusers.

Plenum opening Vs No of slots:
No of slots     1     2     3     4     5     6     7     8
Plenum opening size in mm
1. 16 mm slot opening     48     78     108     138     168     198     228     258
2. 20 mm slot opening     52     86     120     154     188     188     256     290
3. 25 mm slot opening     57     96     136     174     213     213     291     330


How to order:
Model     Size     Quantity     Insulation     Optional accessories
APB     Specify length x slot opening in mm x mm     Specify in numbers     A = 25 mm thick 24 kg/m3 fiber glass     1 = volume control dampers
APB-I     B = 25 mm thick 48 kg/m3 fiber glass
APB-D     C = Other insulation
Ordering example:

To order plenum box of size 1200 x 1200 mm, quantity 50 nos.lined with 25 mm thick 24 kg/m3 density fiber glass insulation.

Order as: APB-I - 1200 x 120 - 50 - A.
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Supply Air Grill

Ball Bearing
Construction:

    Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
    Blades: Aerofoil blades from aluminium profiles.
    Blade spacing: 20 mm as standard.

Description:

    The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
    Grilles have two sets of parallel aerofoil blades with one set mounted horizontally on the front and other set vertically at the rear.
    Frame is separated from the aerofoil deflection blades by nylon bushings. This method of assembly ensures quiet, smooth and rattle free operation.
    Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes.
    Maximum effective pressure areas can be achieved when the blades are positioned at 0° position.
    Foam gasket is sealed around the back of the frame as option to avoid air leakage.

Standard finishes:

    Natural anodized aluminium finish.
    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available on request.

Mullion arrangement:

    Mullion: Aluminium profiled U-channel.
    If the length of the grille is above 500 mm, horizontal aerofoil blades are connected vertically at through a mullion, fixed at the center of the grille for stability.
    For grilles of length 1000 mm and above, two mullions will be connected vertically at equidistant.



Standard Sizes:

    Available in square and rectangular sizes.
    All combination of W x H.
    Non standard sizes are available as option.

mm x mm
150 x 150     300 x 200     400 x 150     500 x 150     650 x 100
200 x 100     300 x 250     400 x 200     500 x 200     700 x 250
200 x 125     300 x 300     400 x 250     500 x 250     750 x 100
200 x 150     350 x 125     400 x 300     500 x 300     750 x 150
250 x 100     350 x 150     400 x 400     500 x 350     750 x 200
250 x 125     350 x 200     450 x 100     500 x 400     750 x 250
250 x 150     350 x 250     450 x 150     600 x 125     900 x 150
250 x 200     350 x 300     450 x 200     600 x 150     900 x 200
250 x 250     350 x 350     450 x 450     600 x 200     1000 x 200
300 x 100     400 x 100     500 x 100     600 x 250     1200 x 150
300 x 125     400 x 125     500 x 125     600 x 300      
300 x 150                        

Fixing Details:
Screw fixing    
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Supply Air Curved Linear Bar Grill

Ball Bearing
Construction:

    Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
    Face Bars: High quality aluminium profiles of 0°, 15° - 1 way throw and 15° - 2 way throw.
    Bar spacing: 12 mm as standard. 6 mm as option.
    Grille width: 50 mm to 300 mm with increments of 50 mm.
    Length: 1 meter as standard.

Description:

    Frame and face bars are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
    Horizontal face bars with 0°, 15° - 1 way throw and 15° - 2 way throw are fixed rigidly to the frame with 8 mm pipes.
    Vertical aluminium aerofoil blades are fixed at the rear side of the frame by nylon bushings. These blades can be adjusted manually and individually in the vertical plane to obtain optimum air distribution.
    For perfect unbroken appearance of continuous runs, alignment strips are provided.
    Supply and return air curved linear bar grilles are available up to a length of 3mts with a minimum radius of curvature of 1 meter.
    Available without damper. Dampers can be provided to use in plenum boxes as option.
    Foam gasket is sealed around the back of the frame as option to avoid air leakage.
    Supplied with C - clamps for concealed fixing.

Standard finishes:

    Natural anodized aluminium finish.
    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available as option.

Model: ARLG (C)

Same as ASLG (C). without vertical aerofoil blades.
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Egg Crate Register

Ball Bearing
Construction:

    Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
    Egg crate core: 12.5 mm x 12.5 mm x 12.5 mm aluminium grid.
    Damper frame and blades: Aluminium profiles with natural aluminium finish. Black matt finish as option.

Description:

    Frame and face bars are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
    Aluminium egg crate core of 12.5 mm x 12.5 mm x 12.5 mm size is fixed rigidly to the frame.
    Grilles fixed with opposed blade damper for controlling exhaust air flow.
    Damper blades are fixed to the frame by nylon bushes.
    Damper blades can be screw operated from the face opening.
    Foam gasket is sealed around the back of the frame as option to avoid air leakage.
    Rigid construction provides noiseless performance.
    Designed for return and exhaust applications for conditioned space.

Standard finishes:

    Natural anodized aluminium finish.
    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available as option.

Standard sizes:

    Available in square and rectangular sizes.
    Non standard sizes are available as option.

Width in mm     150     225     300     375     450     525     600
Height in mm     150     225     300     375     450     525     600

 

Screw fixing

Concealed fixing

How to order:
Model     Size     Quantity     Finish
AEG    
Specify opening size in
Width x height
mm x mm
    Specify in numbers     A =  Aluminium
B = RAL 9010
AER
C = Other RAL colors

Ordering example:

To select egg crate register of size 450 x 450 mm of quantity 75 nos with aluminium anodized finish.

Order as: AER - 450 x 450 - 75 - A.
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Supply Air Square Ceiling Diffuser

Ball Bearing
Construction:

    Frame and core: High quality extruded aluminium profile with 33 mm flange width.
    Damper frame and core: High quality extruded aluminium profile with natural aluminium finish. Black matt finish as option.

Description:

    The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
    Louvered type core is fixed to the frame with aluminium pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation, maintenance and damper adjustment.
    Damper is fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.
    Damper blades are seperated from its frame by nylon bushes.
    Opposed blade damper is screw operated from the face opening of the diffuser after removing the internal core. Lever operated damper as option.
    Frame with multicore assembly, discharges air horizontally in three directions.
    Foam gasket is sealed around the back of the frame as option to avoid air leakage.
    Available in rectangular sizes as option.
    Suitable for flush mounting in lay in type ceiling.

Standard finishes:

    Natural anodized aluminium finish.
    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available as option.

Model ACD3:

Same as ACD2C+D, but without opposed blade damper. Suitable for return air applications.

Core pattern:
Air pattern     Square     Rectangular
One way        
Two way        
Two way corner        
Three way        
Four way        

Standard sizes:

    Available in square and rectangular sizes.
    Any combination of W x D.

W = width in mm     150     225     300     375     450     525     600
D = depth in mm     150     225     300     375     450     525     600

False ceiling sizes:
Duct size in mm x mm     150 x 150     225 x 225     300 x 300     375 x 375     450 x 450     525 x 525     600 x 600
False ceiling opening size     230 x 230     305 x 305     380 x 380     455 x 455     530 x 530     605 x 605     680 x 680

 

 

Fixing Details:

Concealed screw fixing from neck of the diffuser to the duct, after removing the inner core.
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Fixed Round Ceiling Diffuser

Ball Bearing
Construction:

    Frame and inner cones: High quality steel construction.
    Damper frame and blades: Steel sheet with black matt finish.

Description:

    Frame and cones are constructed from high quality steel sheet.
    Inner cones fixed rigidly to the frame.
    Radial, opposed blade damper is fixed to the frame by rivets. Damper can be operated by screw through diffuser face.
    Foam gasket is sealed around the back of the frame as option to avoid air leakage.
    The diffuser can be used for ceiling or exposed duct mounting and has a fixed horizontal air pattern.

Standard finishes:

    Steel construction with white powder coated color finish (RAL 9010).
    Powder coated color finish as per other RAL color codes available as option.

Standard sizes:

Neck size in mm dia
    A     B     C
152
203
254
305
356
   
252
303
354
405
456
   
200
255
305
355
405
   
29
33
37
42
46
Air pattern:
    Horizontal air pattern

    Pattern is obtained by extending the cones downwards.
    This arrangement handles more capacity of air with increased induction and uniform air distribution.

   
    Vertical air pattern

    Pattern is obtained by retracting the cones upwards.
    Air is delivered vertically without much induction.
    Suitable for localized cooling in conditioned area and for higher altitudes.

   
Fixing details:

    ARDF: Screw fixing.
    ARD: Concealed screw fixing from neck of the diffuser to the duct after removing internal cones.

How to order:
Model     Size     Quantity     Finish
ARDF     Specify neck size in mm diameter     Specify in numbers     A = RAL 9010
B = Other RAL colors

Selection example:

To order fixed round ceiling diffusers of 254 mm dia, qty = 75 numbers with white powder coated color finish (RAL 9010).

Order as: ARDF - 254 - 75 - A.
Model     Size     Quantity     Finish
ARD     Specify neck size in mm diameter     Specify in numbers     A = RAL 9010
ARDS     B = Other RAL colors

Selection example:

To order round ceiling diffusers - adjustable cones of size 315 mm dia, quantity = 50 numbers with white powder coated color finish (RAL 9010).

Order as: ARD - 315 - 50 - A.
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Jet Diffuser

Ball Bearing
Construction:

    Frame: High quality heavy gauge aluminium sheet.
    Outer flange: High quality extruded aluminium profiles.
    Inner rings: Aluminium spun rings.
    Optional accessories: Plenum box either lined or unlined as per clients choice.

Description:

    Frame and inner rings are high quality aluminium construction with the advantages of corrosion resistance.
    Jet nozzle section is mounted in aluminium square plate covered by flanged border.
    Nozzle can be adjusted 30° upwards and downwards to achieve required throw as per site condition. Nozzle jet can be rotated by 360° by adjusting the mounting frame.
    Generally designed for wall mounting. For ceiling mounting, drill 2 to 4 holes in the face of the flanged border.
    Air master jet diffusers are specially suitable to handle large quantity of air with long throw.
    Ideal for commercial use such as concert halls, theatres, exhibition and sport halls.
    Jet nozzles can be supplied with plenum box, which is manufactured from galvanized steel sheet as option.
    Plenum boxes can be supplied with round duct damper at the spigot as option.

Standard finishes:

    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available as option.

Standard sizes:

Available from 100 mm dia to 400 mm dia with the increments of 50 mm.
D = Dia of jet diffuser in mm     100     150     200     250     300     350     400

Fixing details:

Screw fixing from flange to duct.
Panel arrangement:

1, 2, 3 or 4 nos of jet diffusers will be arranged in a panel as per performance requirement.

Model     Duct size L x W in mm x mm     A     B     (Ø)E

AJD 100-P
   

200 x 200
   

250
    250     100
AJD 150-P     250 x 250     300     300     150
AJD 200-P     300 x 300     350     350     200
AJD 250-P     350 x 350     400     400     250
AJD 300-P     400 x 400     450     450     300
AJD 350-P     450 x 450     500     500     350
AJD 400-P     500 x 500     550     550    

400
Model     Duct size L x W in mm x mm     A     B     C

AJD 100-2P
   

390 x 200
 
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Sand Trap Louver With Filter

Ball Bearing
Construction:

    Frame and blades: 1.5 mm and 1.2 mm thick high quality extruded aluminium profiles.
    Bird screen: 12 mm x 12 mm x 1.5 mm dia aluminium wire mesh as standard. 12 mm x 12 mm x 1 mm dia G.I wire mesh as optional.
    Drain: 20 mm dia self drain holes at the bottom of the louver.
    Filter frame: 20 gauge aluminium sheet.
    Filter media: Expanded aluminium media.

Description:

    The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
    Composed two sets of inverted U - channels mounted vertically on two opposite rows.
    Drain holes of diameter 20 mm are provided in two rows at the bottom of the louver for emptying filtered sand and dust.
    Fixed with a removable washable extruded aluminium filter with aluminium mesh as the filter media.
    Filters are available at 12, 25, 40 and 50 mm thickness as required.
    Total assembly is designed to operate at medium and high velocities with high dust holding capacity at low resistance to air flow.
    Can be manufactured from galvanized steel sheets as option.
    Designed to separate and and dust from the air stream.
    Generally used for ventilation applications and at inlet duct of air handling unit.

Standard finishes:

    Natural anodized aluminium finish.
    Powder coated color finish as per RAL color codes.
    Flexibility of finishing available as option.

 

Fixing details:

    Concealed screw fixing as per the site conditions.

 

 

How to order:
Model     Accessories     Size     Quantity     Finish
ASTL     F = Filter     Specify listed size Width x Height in mm x mm     Specify in numbers     A = Aluminium anodized finish.
D = Damper
B = RAL 9010
AFSTL
C = Other RAL colors.
D+F = damper and filter

Ordering example:

To select sand trap louver, damper and filter assembly, of size 1200 x 900 mm, quantity 75 nos, with aluminium anodized finish.

Order as: ASTL+F+D - 1200 x 900 - 75 - A.
Sand rejection efficiency:

Tests conducted on Model:ASTL at a face velocity of 0.5m/sec indicates a typical efficiency of
90 percent on 200 to 700 microns.
80 percent on 20 to 200 microns.
50 percent on 1 to 70 microns.

Better efficiency can be achieved by sand trap louvers with washable aluminium filters.
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Volume Control Damper

Ball Bearing
Construction:

    Frame: 1.2 mm thick galvanized steel sheet.
    Frame size: 125 mm depth and standard flange height of 25 mm.
    Blades: Double skinned high quality extruded aluminium aerofoil profiles.
    Bearing pins: Electro plated square steel rod of size 12.7 mm x 12.7 mm.
    Bushings: Self oiling nylon bushings of internal square size.
    Bearing pin connecting quadrant: Electro plated square steel rod of size 12.7 x 12.7 mm.
    Blade linkage: Steel / aluminium linkage.
    Blade stopper: 20 mm x 20 mm aluminium angle.

Description:

    Frame is constructed from galvanized steel sheet. Joints are welded and protected by aluminium spray coating.
    Blades are coupled by external concealed linkage, which can provide either parallel or opposed blade operation.
    Linkage rods are coupled with hand locking quadrant with open and close marking. Hand locking quadrant frame is marked to show exact position of damper.
    Structure is available with flanged edges and are supplied un drilled as standard.
    Dampers without flanges available as option for duct insertion purpose. Flanged edges with drilled holes are also available.
    Available in square and rectangular sizes.
    Designed for use in heating, ventilating and air conditioning systems.

Accessories:

    Motorized dampers: Volume control dampers will be supplied with actuators of client's choice. The dampers can be provided with an extended linkage to fix motor at the site.

Standard sizes:

    Available in square and rectangular sizes.
    Sizes available from 100 x 100 mm with an increment of 25 mm.
    Non standard sizes available as option.

Fixing details:

Model: AVCD

How to order:
Model     Size     Quantity     Fixing
AVCD     Specify duct width x height in mm x mm     Specify in numbers     A = Fixing by bolts.
B = Slip and clip joint.

Ordering example:

To select volume control damper for a duct size of 900 x 600, quantity 75 nos. bolt fixing.

Order as: AVCD - 900 x 600 - 75 - A.
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Access Doors With Removable Door Frame

Ball Bearing
Construction:

    Frame and door panels: 22 gauge galvanized steel sheet.
    Insulation of door panel: 25 mm thick, 24 or 48 kg/m3 density fiber glass as standard. Other insulation specifications are optional.

Description:

    Frame and door panels are fabricated from 22 gauge galvanized steel sheet.
    Frame is provided with 3 mm thick neoprene gasket all around to avoid air leakage.
    Door panel is internally insulated with 25 mm thick, 24 or 48 kg/m3 density fiber glass for thermal and acoustic insulation.
    For sizes upto 200 x 200 mm, door is provided with 2 nos zinc plated cam locks and chromium plated handle for easy removal and fixing.
    For sizes more than 200 x 200 mm, door frame is provided with 4 nos. cam locks and handle.
    Structure is designed to withstand high pressure differences.
    Sizes are available from 150 x 150 mm to 600 x 600 mm with an increment of 50 mm.
    Access doors offer quick easy installation where duct access required.
    Applicable in air conditioning plant rooms, plenums, air handling units and near fire dampers.

 

Fixing details:

 Model: AAD

 Model: AAD-P

 

 

How to order:
Model     Size     Quantity     Door internal insulation
AAD     Specify duct opening size in mm x mm     Specify in numbers     A = 25 mm, 24 kg/m3 density fiber glass
B = 25 mm, 48 kg/m3 density fiber glass
AAD-P     C = 40 mm, 24 kg/m3 density fiber glass
A = Other specifications

Ordering example:

To select access door for a duct opening of 450 x 450 mm, Quantity 75 nos. Door frame internally insulated with 25 mm thick, 24 kg/m3 fiber glass insulation.

Order as: AAD - 450 x 450 - 75 - A.
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Grills And Register-Air Grill

Ball Bearing

Model ASG-H / ASG-V

Construction:

  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminium profiles.
  • Blade spacing: 20 mm as standard.

Description:

  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Grilles have two sets of parallel aerofoil blades with one set mounted horizontally on the front and other set vertically at the rear.
  • Frame is separated from the aerofoil deflection blades by nylon bushings. This method of assembly ensures quiet, smooth and rattle free operation.
  • Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes.
  • Maximum effective pressure areas can be achieved when the blades are positioned at 0° position.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
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Air Register

Ball Bearing

Model ASR-H

Construction:
  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminium profiles.
  • Blade spacing: 20 mm as standard.
  • Damper frame and blades: High quality extruded aluminium profiles with natural aluminium finish. Black matt finish as option
Description:
  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Grilles have two sets of parallel aerofoil blades with one set mounted vertically on the front and other set horizontally at the rear.
  • Frame is separated from the aerofoil deflection blades by nylon bushings. This method of assembly ensures quiet, smooth and rattle free operation.
  • Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes.
  • Grilles are rigidly fixed with opposed blade damper by grippers. Damper blade is screw operated from the face opening.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
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Supply Air Register

Ball Bearing

Model ASR-V

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminum profiles.
  • Blade spacing: 20 mm as standard.
  • Damper frame and blades: High quality extruded aluminum profiles with natural aluminum finish. Black matt finish as option
Description:
  • The frame and blades are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Grilles have two sets of parallel aerofoil blades with one set mounted vertically on the front and other set horizontally at the rear.
  • Frame is separated from the aerofoil deflection blades by nylon bushings. This method of assembly ensures quiet, smooth and rattle free operation.
  • Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes.
  • Grilles are rigidly fixed with opposed blade damper by grippers. Damper blade is screw operated from the face opening.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
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Return Air Grille

Ball Bearing

Model ARG-H

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminum profiles.
  • Blade spacing: 20 mm as standard.
Description:
  • The frame and blades are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Deflection blades are fixed rigidly to the frame at an angle of 45° to the horizontal plane.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
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Fresh Air Grille

Ball Bearing

Model AFAG

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminum profiles.
  • Blade spacing: 20 mm as standard.
  • Filter frame: One mm thick aluminum sheet.
  • Filter media: Aluminum mesh.
Description:
  • The frame and blades are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Deflection blades are fixed rigidly to the frame at an angle of 45° to the horizontal plane.
  • Removable 12 mm thick aluminum washable filter is placed at the back of the grille.
  • Grille frame is fixed to the main frame by hinges on one side and by screw on the other side.
  • Filter can be removed easily by opening the grille frame.
  • Total assembly will be same as ARG-H, with removable 12 mm thick aluminum filter.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
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Universal Grille

Ball Bearing

Model AUG

Construction
  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 24 mm flange width as optional.
  • Blades: Aerofoil blades from aluminium profiles.
  • Blade spacing: 20 mm as standard.
  • Damper frame and blades: High quality extruded aluminium profiles with natural aluminium finish, Black matt finish as option.

Description:

  • This grille is specifically designed for direct mounting on rigid round duct,with a curved face.


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


  • Grilles have two sets of parallel aerofoil blades with one set mounted horizontally on the front and other set vertically at the rear.


  • Frame is separated from the serofoil deflection blades by nylon bushing. This method of assembly ensures quiet, smooth and rattle free operation.

  • Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes.


  • Grilles are rigidly fixed with opposed blade damper by grippers. Damper blade is screw operated from the face opening.


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Air Linear Bar Grille

Ball Bearing

Model ASLG

Construction:

  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Face Bars: High quality aluminium profiles of 0°, 15° - 1 way throw and 15° - 2 way throw.
  • Bar spacing: 12 mm as standard. 6 mm as option.
  • Grille width: 50 mm to 300 mm with increments of 50 mm.
  • Length: 1 meter as standard. Available from 0.2 mt to 5.8 mt in a single piece.
Description:
  • Frame and face bars are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Horizontal face bars with 0°, 15° - 1 way throw and 15° - 2 way throw are fixed rigidly to the frame with 8 mm pipes.
  • Vertical aluminium aerofoil blades are fixed at the rear side of the frame by nylon bushes. These blades can be adjusted manually and individually in the vertical plane to obtain optimum air distribution.
  • For perfect unbroken appearance of continuous runs, alignment strips are provided.
  • Total structure is manufactured by mechanical assembly, assuring rigidity and to maintain straight line appearance.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Supplied with C - clamps for concealed fixing.
Standard finishes:
  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Air Curved Linear Bar Grill

Ball Bearing

Model ASLG(C)

Construction:
  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Face Bars: High quality aluminium profiles of 0°, 15° - 1 way throw and 15° - 2 way throw.
  • Bar spacing: 12 mm as standard. 6 mm as option.
  • Grille width: 50 mm to 300 mm with increments of 50 mm.
  • Length: 1 meter as standard.
Description:
  • Frame and face bars are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Horizontal face bars with 0°, 15° - 1 way throw and 15° - 2 way throw are fixed rigidly to the frame with 8 mm pipes.
  • Vertical aluminium aerofoil blades are fixed at the rear side of the frame by nylon bushings. These blades can be adjusted manually and individually in the vertical plane to obtain optimum air distribution.
  • For perfect unbroken appearance of continuous runs, alignment strips are provided.
  • Supply and return air curved linear bar grilles are available up to a length of 3mts with a minimum radius of curvature of 1 meter.
  • Available without damper. Dampers can be provided to use in plenum boxes as option.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Supplied with C - clamps for concealed fixing.
Standard finishes:
  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Egg Crate Grille

Ball Bearing

Model AEG

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Egg crate core: 12.5 mm x 12.5 mm x 12.5 mm aluminum grid.
Description:
  • Frame and face bars are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Aluminum egg crate core of 12.5 mm x 12.5 mm x 12.5 mm size is fixed rigidly to the frame.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Rigid construction provides noiseless performance.
  • Designed for return and exhaust applications for conditioned space.

Standard finishes:

  • Natural anodized aluminum finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
Standard sizes:
  • Available in square and rectangular sizes.
  • Non standard sizes are available as option.
Width in mm150225300375450525600
Height in mm150225300375450525600
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Door Grille With Single Frame

Ball Bearing

Model ADG1

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: High quality extruded aluminum profiles.
  • Blade pitch: 15 mm.
Description:
  • Frame and face bars are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Inverted "V" type horizontal blades are fixed rigidly to the frame.
  • Blades are spaced at a distance of 15 mm.
  • Grilles are made to withstand heavy use to which door grilles are subjected.
  • Frame is fabricated to suit door thickness of 30 mm to 60 mm.
  • Structure provides around 55% free area for air transmission.
  • Used in facilities such as offices, hospitals, schools and toilets for transfer of air from one room to another room.
  • Fire rated door grilles are available with 1/2 and 1 hour fire rating with additional cost.

Standard finishes:

  • Natural anodized aluminum finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
Standard sizes:
  • Available in square and rectangular sizes.
  • Non standard sizes are available as option.
Width in mm 150 200 250 300 350 400 450 500
Height in mm 150 200 250 300 350 400 450 500
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Door Grille With Double Frame

Ball Bearing

Model ADG2

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: High quality extruded aluminum profiles.
  • Blade pitch: 15 mm.
Description:
  • Frame and face bars are of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Inverted "V" type horizontal blades are fixed rigidly to the frame to avoid vibration and corrosion.
  • Blades are spaced at a distance of 15 mm.
  • Provided with a counter frame for fixing on both sides of the door.
  • Made to withstand heavy use to which door grilles are subjected.
  • Frame is fabricated to suit door thickness of 30 mm to 60 mm.
  • Structure provides around 55% free area for air transmission.
  • Used in facilities such as offices, hospitals, schools and toilets for transfer of air from one room to another room.
  • Fire rated door grilles are available with 1/2 and 1 hour fire rating with additional cost.

Standard finishes:

  • Natural anodized aluminum finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Air Square Ceiling Diffuser-One Way Throw

Ball Bearing

Model ACD1+D

Construction:
  • Frame and core: High quality extruded aluminium profile with 33 mm flange width.
  • Damper frame and core: High quality extruded aluminium profile with natural aluminium finish. Black matt finish as option.
Description:
  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Louvered type core is fixed to the frame with aluminium pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation, maintenance and damper adjustment.
  • Damper is fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.
  • Damper blades are separated from its frame by nylon bushes.
  • Opposed blade damper is screw operated from the face opening of the diffuser after removing the internal core. Lever operated damper as option.
  • Discharges air horizontally in one way, either X or Y directions as per pattern arrangement.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Available in rectangular sizes as option.
  • Suitable for flush mounting in lay in type ceiling.
Standard finishes:
  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Perforated Ceiling Diffuser

Ball Bearing

Model APCD

Construction:
  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Perforated panel: 0.8 mm thick galvanized perforated steel sheet.
Description:
  • Frame is fabricated from high quality extruded aluminum profiles with the advantages of corrosion resistance and rigidity.
  • Perforated panel is fixed to the frame by screws. Panel can be removed easily by loosening the screws.
  • Different types of internal cores can be fixed inside the perforated panel as option. Core is fixed to the frame with aluminium pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation and maintenance.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
Standard finishes:
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.

Model: APCD+D

Type: Perforated ceiling diffuser with damper.

Construction is same as APCD+P, but with butterfly damper at the neck of the plenum.

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Curved Supply Air Linear Slot Diffuser

Ball Bearing

Model ASLD(C)

Construction:

  • Frame & Blades: High quality extruded aluminum profiles.
  • Optional Damper: Hit and miss damper.
  • Slot width: 20 mm as standard. 16 mm, 25 mm and non standard sizes available as option.
  • Number of slots available: 1, 2, 3, 4, 5, 6, 7, 8
  • Length: Up to 3 meters are available in a single piece.

Description:

  • Frame and deflection blades are made of high quality extruded aluminum profiled construction with the advantages of corrosion resistance and rigidity.
  • Hit and miss damper will be fixed rigidly at the rear side of the diffuser as option.
  • Positive alignment of adjacent sections can be made by using alignment strips.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Suitable for installation for ceiling and sills.
  • Supply and return air curved linear slot diffusers are available upto a length of 3 meters with a minimum radius of curvature of 1 meter.
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Laminar Flow Panel

Ball Bearing

Model ALP

Construction:

  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard.
  • Perforated panel: 0.8 mm thick galvanized perforated steel sheet.
Description:
  • Frame is fabricated from high quality extruded aluminum profiles with the advantages of corrosion resistance and rigidity.
  • Perforated panel is fixed to the frame by screws. Panel can be removed easily by loosening the screws.
  • Laminar flow panels are supplied with an inbuilt plenum box.
  • Air master laminar flow panels used for a low velocity, evenly distributed, down word throw. Mostly used in operation theaters.
Standard finishes:
  • Powder coated color finish RAL 9010.
  • Powder coated color finish as per other RAL color codes available.
How to order:
Model Size Quantity Finish
ALP Specify ceiling module size mm x mm Specify in numbers B = RAL 9010
C = Other RAL colors

To select laminar flow panel for a size 600 x 600 mm of quantity 75 nos with RAL9010

Order as: ALP - 600 x 600 - 75 - B.

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Round Ceiling Diffuser-Adjustable Pattern

Ball Bearing

Model ARD construction: frame and inner cones: high quality aluminum sheet as standard. Steel construction as option. Damper frame and blades: steel sheet with black matt finish. Description: frame and inner cones are made of high quality aluminum sheet construction with the advantages of corrosion resistance and rigidity. Inner cones fixed centrally to the frame. Cones can be taken out by pushing inward, turn around and pull down. This provides easy installation, maintenance and access to the duct. Radial, opposed blade damper is fixed to the frame by rivets. Damper can be operated by screw through diffuser face. Foam gasket is sealed around the back of the frame as option to avoid air leakage. Discharge pattern can be adjusted for horizontal flow by extending the cones and for vertical flow by retracting the cones. Can be used for ceiling or exposed duct mounting especially in installation when an adjustable pattern is required. Standard finishes: aluminum construction with white powder coated color finish (RAL 9010). Steel construction with white powder coated finish (ral9010) powder coated color finish as per other ral color codes available as option. Model ards: same as ard, but with steel construction. Standard sizes: ard ards n in mm dia a b c d f g 160 160 160 279 323 12 35 85 46 200 200 200 375 428 10 51 101 55 250 250 250 467 538 14 67 117 68 315 315 315 557 635 10 85 135 80 355 355 355 648 743 18 96 146 86 400 400 400 740 856 14 116 166 92 450 450 450 832 970 14 135 185 110 500 500 500 924 1081 17 149 199 116.

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Single Side Light Troffer Diffuser

Ball Bearing

Model ALTD

Construction:

  • Frame: 22 or 20 gauge galvanized steel sheet.
  • Spigot: Circular spigot of 125 or 150 mm dia with 75 mm length as standard. Square, rectangular and oval shaped spigots as optional.
  • Optional accessories: Volume control dampers, internal or external insulation.
Description:
  • Constructed from 22 gauge galvanized steel sheet.
  • Circular spigot of 125 or 150 mm diameter with 75 mm length fixed to the diffuser. Inlets of square, rectangular or oval shapes are available on request.
  • Exposed surfaces can be painted black (RAL 9005) as option to minimize reflection.
  • Volume control dampers are fixed to the spigot connection as per the client's request for effective dampening and to equalize the internal flow along the full length.
  • Design flexibility exits to suit different light troffers without projections and interference.
  • Available without insulation. Internal or external insulation as option.
  • For accuracy in fabrications as per site condition, please mention light fitting model number and manufacturer's name and details with exact dimensions.
Standard sizes:

Diffuser sizes corresponding to light troffer:

Model: ALTD
Length of troffer in mm 600 900 1200
Length of troffer diffuser in mm 560 860 1160
Model: ALTD-T & ALTD-S

Size of the troffer L x W in mm

Light troffer diffuser

Length (mm) Width (mm)
300 x 1200 230 1020
600 x 600 530 450
900 x 900 830 735
600 x 1200 530 1020
1200 x 1200 1130 1020
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Double Side Light Troffer Diffuser-Top Inlet

Ball Bearing

Model ALTD-T

Construction:

  • Frame: 22 or 20 gauge galvanized steel sheet.
  • Spigot: Circular spigot of 125 or 150 mm dia with 75 mm length as standard. Square, rectangular and oval shaped spigots as optional.
  • Optional accessories: Volume control dampers, internal or external insulation.
Description:
  • Constructed from 22 gauge galvanized steel sheet.
  • Circular spigot of 125 or 150 mm diameter with a standard length of 75 mm are fixed at the top of the diffuser.
  • Inlets of square, rectangular or oval shapes with different inlet positions as per site conditions are available on request.
  • Air collected from spigot is equally discharged through slots on both sides of the diffuser.
  • Exposed surfaces can be painted black (RAL 9005) as option to minimize reflection.
  • Volume control dampers are fixed to the spigot connection as per the client's request for effective dampening and to equalize the internal flow along the full length.
  • Design flexibility exits to suit different light troffers without projections and interference.
  • Available without insulation. Internal or external insulation as option.
  • For accuracy in fabrications as per site condition, please mention light fitting model number and manufacturer's name and details with exact dimensions.
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Flush Mounted Sand Trap Louver

Ball Bearing

Model AFSTL

Construction:

  • Frame and blades: 1.5 mm and 1.2 mm thick high quality extruded aluminium profiles.
  • Bird screen: 12 mm x 12 mm x 1.5 mm dia aluminium wire mesh as standard. 12 mm x 12 mm x 1 mm dia G.I wire mesh as optional.
  • Sand chute: Aluminium sheet tray of 1.2 mm thick.
Description:
  • The frame and blades are of high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Composed two sets of inverted U - channels mounted vertically on two opposite rows.
  • Surface of the louver is fixed flush on the plane of the wall. The filtered sand will be drained through a sand chute.
  • Sand chute is an inclined tray fixed at the bottom of the louver for sand drain.
  • Designed to separate and and dust from the air stream.
  • Generally used for ventilation applications and at inlet duct of air handling unit.

Standard finishes:

  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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High Efficiency Sand Trap Louver

Ball Bearing

Model ASTL-HE

Construction

  • Frame: 2mm thick extruded aluminium formed sheets.

  • Blades: 6063 high grade aluminium blade 2mm thick.

  • Sand Chute: 1.5mm thick aluminium sheet.
Description:
  • Designed to filter sand particles at high intake velocities, as high as 4m/sec with high efficiency which is more than 90% and lesser pressure drop.
  • It has the advantage of more free area so that sizes of usual sand trap louvers can be reduced to 25% of the normal sizes.
  • Composed of a row of blades moutred vertically inside the frame.
  • Designed to separate sand and dust from the air stream.
  • The filtered sand will be drained through a sand chute fixed at the bottom of the louver.
  • Generally used for ventilation applications and at inlet duct of air handling unit.

Standard finishes:

  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Exhaust Air Louver

Ball Bearing

Model AL

Construction:

  • Frame and blade: High quality extruded aluminium profiles with 30 mm flange width as standard. 12, 16, 24 mm flange widths are option.
  • Blade pitch: 40 mm
  • Optional wire mesh: 12 x 12 x 1.5 mm dia aluminium PVC coated wire mesh. 12 mm x 12 mm x 1 mm dia G.I wire mesh.
Description:
  • Composed of frame and horizontal blade assembly, manufactured from high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Blades are fixed rigidly to the main frame by rivets.
  • Blades are set at angle of 45° to the horizontal with 40 mm spacing.
  • Total structure is weather proofed and blades are inclined downwards to protect against rain water.
  • Structure provides around 45% effective pressure area.

Standard finishes:

  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.

Standard sizes:

Width in mm 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
Height in mm 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
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Fresh Air Louver

Ball Bearing

Model AFL

Construction:

  • Frame and blade: High quality extruded aluminum profiles with 30 mm flange width as standard. 12, 16, 24 mm flange widths are option.
  • Blade pitch: 40 mm
  • Optional wire mesh: 12 x 12 x 1.5 mm dia aluminum PVC coated wire mesh. 12 mm x 12 mm x 1 mm dia G.I wire mesh.
  • Filter frame: Aluminum sheet.
  • Filter media: Expanded aluminum media.
Description:
  • Composed of frame and horizontal blade assembly, manufactured from high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Blades are fixed rigidly to the main frame by rivets.
  • Blades are set at angle of 45° to the horizontal with 40 mm spacing.
  • Louver is fixed with a removable washable extruded aluminum mesh as the filter media.
  • Filters are available at 12, 25, 40 and 50 mm thickness as standard. Non standard sizes available as option.
  • Total structure is weather proofed and blades are inclined downwards to protect against rain water.
  • Structure provides around 45% effective pressure area.

Standard finishes:

  • Natural anodized aluminum finish.
  • Powder coated color finish as per RAL color codes.
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Heavy Duty Louver

Ball Bearing

Model AHL

Construction:

  • Frame and blade: High quality heavy gauge extruded aluminum profiles.
  • Blade pitch: 100 mm
  • Optional wire mesh: 12 x 12 x 1.5 mm dia aluminum PVC coated wire mesh. 12 mm x 12 mm x 1 mm dia G.I wire mesh.
Description:
  • Structure is constructed of high quality extruded aluminum profiles with the advantages of corrosion resistance and rigidity.
  • Blades are fixed rigidly to the main frame by rivets.
  • Blades are set at angle of 45° to the horizontal with 100 mm spacing.
  • Total structure is weather and seepage proofed and blades and blades are inclined downwards to protect against rain water.
  • Heavy duty louver provides around 65% effective pressure area.
  • These louvers are designed to provide weather protection for ventilation opening of buildings and electrical transformer rooms, etc.

Standard finishes:

  • Natural anodized aluminum finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available as option.
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Circular Volume Control Damper

Ball Bearing

Model AVCD-C

Construction:

  • Frame: 1 mm thick galvanized steel sheet.
  • Blades: 1 mm thick galvanized steel sheet.
  • Bearing pins: Electro plated steel rod of 10 mm diameter.
  • Bushings: Self oiling nylon bushings of internal square size.
  • Bearing pin connecting quadrant: Electro plated square steel rod of size 12.7 x 12.7 mm.
  • Quadrant: Locking quadrant with heavy gauge, electro plated steel.
Description:
  • Frame is constructed from galvanized steel sheet. Joints are welded and protected by aluminum spray coating.
  • Damper blade, which is fixed to the bearing pin, can be rotated in vertical plane from full open to full close.
  • Bearing pin is coupled with hand locking quadrant with open and close marking. Hand locking quadrant frame is marked to show exact position of damper.
  • Designed for use in heating, ventilating and air conditioning systems.
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Motorized Dampers

Ball Bearing
  • Volume control dampers will be supplied with actuators of client's choice. The dampers can also be provided with an extended linkage to fix the motor at site.

Dimensions:
D = Diameter L = Length C
upto 150 mm L = 200 mm 50 mm
Above 150 mm L = D + 100 mm 50 mm
Standard sizes:
D = Duct opening in mm dia
100 200 300 400 500 600
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Non Return Damper-Wall Mounted

Ball Bearing

Model ANRD-W

Construction:

  • Frame: High quality extruded aluminum profile with 30 mm flange width as standard. 12, 16, 24 mm flange widths are optional.
  • Blades: Aluminum sheet as standard. GI sheet as option.
  • Blade supports: Self oiling nylon bushings with 8 mm diameter aluminum rods.
  • Blade seals: Foam gasket for air tightness.
  • Blade stopper: 20 mm x 20 mm aluminum angle.
Description:
  • Frame is of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Air operated damper blades are fixed to the frame by self oiling nylon bushes with 8 mm dia aluminum pipes.
  • Blades are sealed with foam gasket at the bottom to avoid rattling noise and to provide air tight operation.
  • Blades open full or to any angle depending on the air velocity. Blades stay in position of opening without fluctuating when there is constant air flow. Blades closes quietly when the air flow stops.
  • Designed to maintain a constant pressure level inside pressurized rooms by relieving excess air when it exceeds the desired limit.
  • Generally installed on diesel generator, plant rooms ventilation system and exhaust ducting.
  • Available in square and rectangular sizes.
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Non Return Damper-Duct Mounted

Ball Bearing

Model ANRD-D

Construction:

  • Frame: High quality galvanized steel sheet.
  • Frame size: 125 mm depth and standard flange height of 25 mm.
  • Blades: Aluminum sheet as standard. GI sheet as option.
  • Blade supports: Self oiling nylon bushings with 8 mm diameter aluminum rods.
  • Blade seals: 20 mm x 20 mm aluminum angles.
Description:
  • Frame is constructed from galvanized steel sheet. Welded joints are protected by aluminium spray coating.
  • Air operated damper blades are fixed to the frame by self oiling nylon bushes with 8 mm dia aluminum pipes.
  • Blades are sealed with foam gasket at the bottom to avoid rattling noise and to provide air tight operation.
  • Blades open full or to any angle depending on the air velocity. Blades stay in position of opening without fluctuating when there is constant air flow. Blades closes quietly when the air flow stops.
  • Designed to maintain a constant pressure level inside pressurized rooms. Used at duct outlets to prevent back draft when air moving devices are switched off.
  • In a multi fan installation non return dampers prevent back draft through the operating fans.
  • Structure is available with flanged edges and are supplied un drilled as standard.
  • Available in square and rectangular sizes.

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Plenum Box-Un Lined

Ball Bearing

Model APB

Construction:

  • Frame: 24, 22 or 20 gauge galvanized steel sheet.
  • Spigots: Circular spigots of 75 mm length as standard. Square, rectangular and oval shaped spigots are available as option.
  • Optional accessories: Volume control damper.
Description:
  • Fabricated from 24, 22 or 20 gauge galvanized steel sheet.
  • Circular spigots of required diameter and standard length of 75 mm would be fixed to the plenum box. Square, rectangular and oval shape spigots are available as option.
  • Plenum boxes with side inlet are standard. Other positions are available as per the site conditions to suit client's specifications.
  • Plenum boxes have hemmed edge at the opening for fixing universal mounting brackets.
  • Plenum boxes of length of upto two meters can be manufactured with single spigot. For more than 2 meters plenum boxes will be arranged with multiple spigots.
  • Volume control dampers can be fitted to the spigots on request.
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Disc Valve

Ball Bearing

Model ADV

Construction:

  • Frame and disc: Steel sheet construction.
  • Mounting rings: Galvanized sheet steel.

Description:
  • Frame and disc is made of high quality galvanized steel sheet construction with powder coated to RAL colors.
  • Disc is attached to the frame by threaded rod.
  • Air flow can be adjusted by regulating the cone up or down (+A or -A)
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • These valves can be used for supply, exhaust and ventilation applications.
  • Air master disc valves are best suited to air distribution systems handling relatively low air flow rates within small circular duct work.
  • Can be mounted in wall, ceiling or exposed air ducts with mounting rings.
  • Recommended for exhaust of greasy and damp air in damp areas such as toilets, bathrooms and kitchens.


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Air Grille

Model ARG-H

Construction:
  • Frame: High quality extruded aluminium profile with 30 mm flange width as standard. 12,16,24 mm flange widths are optional.
  • Blades: Aerofoil blades from aluminium profiles.
  • Blade spacing: 20 mm as standard.
Description:
  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Deflection blades are fixed rigidly to the frame at an angle of 45° to the horizontal plane.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
Standard finishes:
  • Natural anodized aluminium finish.
  • Powder coated color finish as per RAL color codes.
  • Flexibility of finishing available on request.


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Fresh Air Louver With Damper

Model AFLR

Construction:

  • Frame and blade: High quality extruded aluminium profiles with 30 mm flange width as standard. 12, 16, 24 mm flange widths are option.
  • Blade pitch: 40 mm
  • Optional wire mesh: 12 x 12 x 1.5 mm dia aluminium wire mesh. 12 mm x 12 mm x 1 mm dia G.I wire mesh.
  • Filter frame: Aluminium sheet.
  • Filter media: Expanded aluminum media.
  • Damper frame and blade: High quality extruded aluminium profiles.
Description:
  • Fresh air louvers are composed of frame and horizontal blade assembly, manufactured from high quality extruded aluminium profiles with the advantages of corrosion resistance and rigidity.
  • Blades are fixed rigidly to the main frame by rivets.
  • Blades are set at angle of 45° to the horizontal with 40 mm spacing.
  • Louver is fixed with an opposed blade damper to ensure positive control over the flow of fresh air stream.
  • Damper blades can be operated manually by a projected lever.
  • Louver is fixed with a removable washable extruded aluminium filter with aluminium mesh as the filter media.
  • Structure provides around 45% effective pressure area.
...more
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Airmaster Flowtec India Pvt Ltd. 25, Kanniamman Koil Street, Kachina Kuppam, Sidco Industrial Estate, Ambattur,
Chennai-600098, Tamil Nadu, India

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