AIRODYNE CATALOGUE VOLUME CONTROL TAMPERS CONSTRUCTION / MATERIALS

AIRODYNE CATALOGUE VOLUME CONTROL TAMPERS CONSTRUCTION / MATERIALS Airodyne multi leaf volume control tampers have been specifically designed for use in air conditioning and ventilation system for volume, flow and pressure control it side and tip seals of low leakage performance 1. The casing frame is robust and rigid assembly formed out of galvanized sheet steel of 1.25mm thickness. 2. The blades are extruded aluminium, double skin, fixed profile aerofoil sections. 3. The bearings are made of PVC/Plastic to withstand operational temperature up to 75 deg. C 4. The blades are fitted with galvanized steel connecting spindle with side linkage for opposed / parallel blade operation. 5. All dampers are fitted with hand locking quadrant with position indicator 6. All joints are welded and sealed for airtight operation and are protected by aluminium spray coating FINISHES : a) Galvanized sheet steel casing / frame (Suffix G ) b) Epoxy primary coated finish (Suffix G ) standard types of models : MODEL OBD-S OBD-F OBD-C PBD-S PBD-F PBD-C ACCESSORIES Opposed blade damper for slip on fixing Opposed blade damper for flange fixing Opposed blade damper for c cleat fixing Parallel blade damper for slip on fixing Parallel blade damper for flange fixing Parallel blade damper for c cleat fixing Standard sizes H 150 200 300 400 500 600 700 800 900 1000 1200 L 100 150 200 300 400 500 600 700 800 900 1000 **Also available in 50mm increments and any combination of H x L Page 1 of 20

CONTENTS / DESCRIPTION 1 VOLUME CONTROL DAMPERS PAGE NO a) INTRODUCTION 02 b) DIMENSIONAL DETAILS (Opposed blade damper) 03 c) DIMENSIONAL DETAILS (Parallel blade damper) 04 d) TECHNICAL DATA 05 e) CIRCULAR VOLUME CONTROL DAMPERS 06 2 ACCESS DOORS / PANELS a) ACCESS DOORS (Technical Details) 07 b) ACCESS PANELS (Technical Details) 08 3 NON-RETURN DAMPERS / GRAVITY LOUVERS a) INTRODUCTION 09 b) DIMENSIONAL DETAILS (Gravity Louvres) 10 c) DIMENSIONAL DETAILS (Non-return Dampers) 11 d) PERFORMANCE 12 e) ORDER PROCEDURE 13 4 STATIONARY ACOUSTIC LOUVRES a) INTRODUCTION 14 b) TECHNICAL DATA 15 5 SAND TRAP LOUVRES a) INTRODUCTION 16 b) DIMENSIONAL DETAILS 17 c) ORDER PROCEDURE / PERFORMANCE CHART 18 6 LINEAR DIFF. / GRILLES PLENUM BOXES a) DIMENSIONAL DETAILS 19 7 SQUARE / RECTANGLE DIFFUSER BOXES a) DIMENSIONAL DETAILS 20 Page 2 of 20

DIMENSION VIEW OPPOSED BLADE DAMPER MODEL OBD S Model OBD - F Model OBD - C OBD EXTERNAL VIEW Page 3 of 20

DIMENSION VIEW PARALLEL BLADE DAMPER MODEL PBD - S Model PBD - F Model PBD - C PBD EXTERNAL VIEW Page 4 of 20

Technical Data INSTALLATION CORRECTION FACTOR Correction factor F Blade angle Type of Installation B C D 0 o 6.0 4.0 9.0 15 o 4.3 2.9 6.3 30 o 2.0 1.7 2.7 45 o 1.4 1.4 1.8 Pressure Drop Installation type A Types of Installation Example : Given : type D installation X=15 V= 4m/sec. Manual Operation by Quadrant Result : Pr. Drop (D)=Pr. Drop (A) x 6.3 = 5 x 6.3 = 31.5 Pa. Page 5 of 20

Dimensional Details CIRCULAR VOLUME DAMPERS AVAILABLE STANDARD SIZES Ø D in mm Ø D in mm 100 400 150 450 200 500 250 550 300 600 350 RCD G : ROUND VOLUME CONTROL DAMPER WITH GROOVED ENDS RCD S : ROUND VOLUME CONTROL DAMPER WITH STRAIGHT ENDS SPECIFICATIONS Rigid and robust housing is made from 20G galvanized sheet steel. Blades made of 18G galvanized sheet steel. Bearing pin made of galvanized steel rod. Nylon Bearing for smooth operation. Fitted with hand locking quadrant with position indicator. All joints are welded and sealed for airtight operation and are protected by aluminium spray coating. MODEL RCD-G MODEL RCD-G Page 6 of 20

TECHNICAL DETAILS ACCESS DOOR MODEL C-ADH Specifications DOOR PANEL DOOR FRAME CAM LOCK High quality 24 G galvanized sheet steel, Double skin and with mineral wool insulation. High quality 24 G galvanized sheet steel with Foam Gasket all around and notched over upper edge for easy fixing over duct. Hot rolled steel Cam Lock STANDARD SIZES L 200 250 300 350 400 450 500 550 600 H 150 200 250 300 350 400 450 500 550 600 2# Camlocaks per unit upto 400mm 4# Camlocks per unit on larger sizes Other Sizes available on request Page 7 of 20

TECHNICAL DETAILS ACCESS PANEL MODEL H-APC SPECIFICATIONS DOOR PANEL DOOR FRAME CAM LOCK HINGES High quality 24 G galvanized sheet steel, Double skin and with mineral wool insulation. High quality 24 G galvanized sheet steel with Foam Gasket all around and notched over upper edge for easy fixing over duct. Hot rolled steel Cam Lock Self oiling hinges spot welded on to the frame. STANDARD SIZES L 200 250 300 350 400 450 500 550 600 H 150 200 250 300 350 400 450 500 550 600 OPENING SIZE 40mm Less than L X H 1# Camlocks per unit upto 400mm 2# Camlocks per unit on larger sizes Other Sizes available on request Page 8 of 20

INTRODUCTION NON RETURN DAMPERS / GRAVITY LOUVRES AIRODYNE Non-return / Pressure relief dampers have been specifically designed for use in Airconditioning and Ventilation system, these dampers are air operated and are used for air intake and exhaust, and are also used for pressure relief. These dampers are also referred as Gravity / Back draught dampers. CONSTRUCTION / MATERIALS 1. The casing frame is robust and rigid assembly formed out of best quality aluminium sheets/galvanized sheet steel of 1.25mm thickness. 2. The blades are formed out of high quality aluminium sheets of 0.6mm / 0.7mm thickness. 3. The bearings are made of PVC/Nylon to give smooth and rattle free operation 4. The blades are fitted with galvanized steel connecting spindle to main casing / frame for rigid and strong construction for rattle free and smooth operation due to variable air pressure. 5. A galvanized / aluminium angle is fitted internally to main frame to avoid over movement of blades. 6. All joints are welded and sealed for airtight operation and are protected by aluminium spray coating. STANDARD TYPES AND MODELS MODEL LG-E LG-S LG-R BD-F BD-S BD-C DESCRIPTION Gravity louvre for exhaust or pressure relief Gravity louvre for air intake Round neck gravity louvre for air exhaust or intake Back draught/non-return damper for duct mounting Back draught/non-return damper for wall mounting Back draught/non-return damper for C cleat fixing STANDARD SIZES H 150 200 300 400 500 600 700 800 900 1000 1200 L 100 150 200 300 400 500 600 700 800 900 1000 **Also available in 50mm increments and any combination of H x L. Page 9 of 20

DIMENTIONAL DETAILS Gravity Louvres MODEL : LG-E MODEL : LG-S MODEL : LG-R Page 10 of 20

DIMENTIONAL DETAILS Non-Return Damper MODEL : BD-S MODEL : BD-C MODEL : BD-F Page 11 of 20

PERFORMANCE Symbols: Δ Pt (Pa) Pressure loss Vf (m/sec)..frontal Velocity Pressure Loss Page 12 of 20

Order Procedure Type Of Fixing 1.. 2.. Counter sunk screw fixing suffix S (Standard supply) Spring clip concealed fixing suffix C Finishes 1.. 2.. 3.. 4.. Natural Anodised Aluminium Finish Powder coated colour finish Galvanised Steel sheet frame for duct mounted type and round neck type Aluminium Mill finish Page 13 of 20

INTRODUCTION STATIONARY ACOUSTIC LOUVRES AIRODYNE Stationary Acoustic Louvres have been specifically designed for use in Air-conditioning and Ventilation system in high decibel area for in noise levels generated by A.C. or any other equipment. CONSTRUCTION/ MATERIALS 1. The casting frame is robust and rigid assembly formed out of best quality 16 gauge galvanized steel sheets (suffix GL ) and also of mill finish aluminum (Suffix AL ) 2. The blades are formed out of high quality galvanized steel sheets with perforated sheets over interior surface to cover the insulation AIRODYNE Stationary Acoustic Louvres are available in three models specific application. Models ADL and ADL-T have acoustic blades positioned at 45 angle and spaced at approx. 200mm to 250mm center to center. The inclined blades offer resistance to storm/rain water ingress. With acoustic properties, the insulating material used in vermin proof and fire retardant. Models ADL-Z have blades or baffles set in Z profile and fixed to main frame at 100mm to 150mm over lapping pitch. These type of stationary acoustic louvers are for internal air transfer system. All joints are welded and sealed for airtight operation and are protected by aluminum spray coating. An optional insect screen/bird mesh is available on request. STANDARD TYPES OF MODELS : MODEL ADL ADL-T ADL-Z ACCESSORIES Stationary Acoustic Louvre Stationary Acoustic Louvre with twin bank Stationary Acoustic Louvres with Z profile STANDARD SIZES H 600 900 1200 1500 1800 2100 L 400 500 600 800 1000 1200 **Also available in 50mm increments and any combination of H x L Page 14 of 20

STATIONARY ACOUSTIC LOUVRES Model : ADL-T Model : ADL MODEL ADL-Z ATTENUATION Page 15 of 20

INTRODUCTION SAND TRAP LOUVRES AIRODYNE Sand Trap Louvres with vertical slots have been specifically designed for use in Air conditioning and Ventilation system to separate sand and dust particles from air stream at moderate pressure drop and low velocities. It separates up to 85% of solid particles held in environment CONSTRUCTION/MATERIAL 1. The casting frame with vertical slots is robust and rigid assembly formed out of best quality 18 gauge galvanized steel sheets (suffix GL ) and also of mill finish aluminum sheets (Suffix AL ) 2. 18mm dia holes are provided at bottom casing for out flow of trapped particles. 3. An accessory Z profile is available for combine mounting of louver units one above other to enable the out flow of trapped particles through the holes provided in the bottom frame. AIRODYNE Sand Trap Louvres are available in fine models for specific requirement. All joints are welded and sealed for airtight operation and are protected by aluminum spray coating STANDARD TYPES OF MODELS : MODEL SL SL-S / SL-B SL-F SL-D SL-FD ACCESSORIES Standard sand trap Louvre Standard sand trap Louvre with bird or insect screen Standard sand trap louvre with 25mm or 50mm thick filter Standard sand trap louvre with volume control damper Standard sand trap louvre with combine filter and damper STANDARD SIZES H 450 600 750 900 1050 1200 1320 1650 1800 1950 L 450 500 600 700 800 900 1200 1400 **Also available in 50mm increments and any combination of H x L. Page 16 of 20

DIMENSIONAL DETAILS SAND TRAP LOUVRES Model : SL Model : SL-S / SL-B Model : SL-F Model : SL Use Z Profile for multiple units mounting for easy out flow of solid particles Model : SL-FD Sectional Details Page 17 of 20

Effective Area M 2 L x H Mm 400 500 600 700 800 900 1000 1200 1400 450 0.063 0.078 0.095 0.110 0.126 0.142 0.157 0.189 0.220 600 0.105 0.126 0.147 0.168 0.189 0.210 0.520 0.294 750 0.157 0.184 0.210 0.236 0.262 0.315 0.367 900 0.220 0.252 0.283 0.315 0.378 0.441 1050 0.294 0.330 0.370 0.441 0.514 1200 0.378 0.420 0.504 0.588 1350 0.472 0.567 0.661 1500 0.630 0.735 1650 0.808 ORDERING PROCEDURES: SL-F MODEL 1200 x 800 5 Nos SIZE QUANTITY FINISHES : #... Mill finish aluminium (Suffix A ) #... Galvanised sheet steel (Suffix S ) #... Powder coated colour finish (Suffix P ) C S TYPE OF FIXING FINISH FIXING : #... Concealed fixing (Suffix C ) is standard supply) #... Recommended for side wall installation 25mm FILTER THICKNESS (if required) PERFORMANCE CHART Page 18 of 20

PLENUM BOXES CONSTRUCTION DETAILS AIRODYNE Plenum boxes are suitable for supply or return linear slot diffusers and are used for smooth distribution of cool and dehumidified air over the linear surface of slot diffusers with no turbulence or noise. AIRODYNE Plenum boxes are manufactured in single piece upto 2000mm of length and cover full range of slot diffusers with one side inlet per meter length. Multiple sections suggested above 2000mm length. AIRODYNE Plenum boxes are manufactured out of 0.6mm thick best quality G.I. Sheets to maintain toughness and rigidity. These plenum boxes are welded and sealed for a airtight performance. An optional quadrant damper is available on request (Suffix D ) 25mm thick mineral fibre insulation lining is optional (Suffix L ) Plenum dimension without insulation No. of D dia H A B Slots 1 150 275 46 A+50 2 200 275 80 A+50 3 200 275 114 A+50 4 250 275 148 A+50 5 250 275 182 A+50 6 315 340 216 A+50 7 315 340 250 A+50 8 315 340 284 A+50 Plenum Dimension with insulation No. of D dia H A B Slots 1 150 300 46 A+100 2 200 300 80 A+100 3 200 300 114 A+100 4 250 300 148 A+100 5 250 300 182 A+100 6 315 365 216 A+100 7 315 365 250 A+100 8 315 365 284 A+100 Page 19 of 20

DIFFUSER BOXES Construction Details AIRODYNE Diffuser boxes are suitable for supply or return ceiling diffusers and are used for smooth distribution of cool and dehumidified air over the surface of ceiling diffusers with no turbulence or noise. AIRODYNE Diffuser boxes are manufactured to cover full range of standard square or rectangle ceiling diffusers i.e. 150mm x 150cc to 600mm x 600mm or any combination of these sizes. AIRODYNE Diffuser boxes are manufactured out of 0.6mm thick best quality G.I. Sheets to maintain toughness and rigidity. These Diffuser boxes are welded and sealed for airtight performance. An optional quadrant damper is available on request (Suffix D ) 25mm thick mineral fiber insulation lining is optional (Suffix L ) Diffuser box dimension Std. Size D dia H A B 150 x 150 150 250 150 150 225 x 225 150 250 2225 225 300 x 300 200 300 300 300 375 x 375 200 300 375 375 450 x 450 250 350 450 450 525 x 525 250 350 525 525 600 x 600 300 400 600 600 Page 20 of 20