2013 product line            Grilles          Diffusers   External Louvres          Dampers
Grille & diffuser rangeSingle deflection and fixed blade grillesSeries SD & FBSingle deflection grilles have a single bank...
Egg crate grilles                                                                                       Stock productSerie...
Grille & diffuser range continuedCurved blade (eyelash) grillesSeries CBCurved blade grilles have an unconventional appear...
Linear bar grillesSeries LGAn extremely versatile grille series. Blade profiles include 0° with 3mmor 6mm tops, 15° and 45...
Grille & diffuser range continuedFixed blade swirl diffusers                                                              ...
Ceiling diffusers                                                                                       Stock productSerie...
Grille & diffuser range continuedLinear slot diffusersSeries LSDCommonly seen in commercial installations, runs of unlimit...
Perforated plate diffusersSeries PPDUsing the same outer frame as standard louvre faced ceiling diffusers,perforated plate...
Grille & diffuser range continuedPressed steel grilles, diffusers and registers                        Intumescent fire bl...
Curved access doorsSeries ADCGalvanised steel with blue plastic handles. Rubber seal between innerand outer parts seals th...
Grille & diffuser rangePlenum boxesSeries PBAlthough not a grille or diffuser, plenum boxes are just as integral inthe maj...
Aluminium dampersVolume control damperSeries VCDA large format, all aluminium damper, HVC VCDs can be made inlarger sizes ...
External louvre rangeStandard single bank louvres                                          Stainless steel & galvanised lo...
Acoustic louvresSeries ALUsing a two part hollow aluminium blade forming a cavity which isthen filled with mineral wool, a...
External louvre rangeHigh performance louvres - Class ASeries HPLWith the addition of two banks of vertical channels behin...
External louvre optionsPolyester powder coating                                                    Bird meshAll louvres sh...
Steel dampersS100 Fire Dampers                                                            CertificationS100 Fire Dampers a...
S600 Fire Smoke Dampers                                                 CertificationS600 Fire Smoke Dampers are as much a...
Plastic dampers for natural ventilationOverviewUltra high shut offExcellent corrosion resistance    The revolutionary uPVC...
Model A - Square, no spigot.         Model B - Square, spigotted.                                                         ...
Ÿ Flues & chimneysŸ Natural ventilation & lightingŸ Kitchen ventilationŸ Air ConditioningŸ Heat pumps & renewablesŸ Solar ...
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Airtherm grilles & louvre booklet

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Airtherm grilles & louvre booklet

  1. 1. 2013 product line Grilles Diffusers External Louvres Dampers
  2. 2. Grille & diffuser rangeSingle deflection and fixed blade grillesSeries SD & FBSingle deflection grilles have a single bank of fully adjustable bladesfor throw adjustment in one plane.Fixed blade grilles have the blade pack fixed at either 0°, 15° or 45°. 25mm flat (Opt) 32mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 46mm B 28mm C 90mm C 72mm D 25mm D 32mmDouble deflection grilles Stock productSeries DD The following sizes are kept in stock for quick delivery.Double deflection grilles add a second set of adjustable blades, set at Satin anodised and RAL9010 available.90° to the first set. This allows throw adjustment in both planes,allowing greater throw adjustment than single deflection grilles. 1502, 2002, 2502, 3002, 3502, 4002, 4502, 5002 200 x 150, 300 x 150, 300 x 200, 400 x 200 25mm flat (Opt) 32mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 46mm B 46mm C 90mm C 90mm D 25mm D 32mm 2 www.airtherm.co.uk
  3. 3. Egg crate grilles Stock productSeries ECG The following sizes are kept in stock for quick delivery.The industry standard extract grille, egg crate grilles have a free area RAL9010 finish, with and without opposed blade dampers.of around 90%, meaning they can handle large air volumes withminimal pressure drops or noise generation. 1502, 2002, 2502, 3002, 3502, 4002, 4502, 5002, 5952 Overall face 30mm flat (Opt) 37mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 28mm B 28mm C 72mm C 70mm D 30mm D 37mmNon vision grillesSeries NV NV1Designed to block line of sight from all angles (NV4 from most), nonvision grilles are used where privacy must be maintained, likebathrooms and doctors surgeries. NV2 Door NV3 Darkrooms NV4 Surface mounted www.airtherm.co.uk 3
  4. 4. Grille & diffuser range continuedCurved blade (eyelash) grillesSeries CBCurved blade grilles have an unconventional appearance, and allowthrow adjustment thanks to the single bank of individually adjustableblades.1, 2, 3 and 4 way blow set ups available. 25mm flat (Opt) 32mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 46mm B 28mm C 90mm C 72mm D 25mm D 32mmPerforated plate grillesSeries PPGPerforated plate grilles use a perforated steel core, to create a tamperresistant unit providing a stable downward throw, perfect forlaboratories, hospital operating theatres etc.Deflector plates can be fitted behind the face to allow different blowpatterns to be created. 30mm flat flange (Opt) 37mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 28mm B 28mm C 72mm C 70mm D 30mm D 37mm 4 www.airtherm.co.uk
  5. 5. Linear bar grillesSeries LGAn extremely versatile grille series. Blade profiles include 0° with 3mmor 6mm tops, 15° and 45°, all of which can be set on a 12.5mm or20mm blade pitch.Other options like removable and hinged cores are also available.If required a reinforced linear bar grille can be offered, for use in floorsor walls where impact resistance is required. ° ° ° ° 31mm flat flange (Opt) 36mm bevelled (Std) A Nominal + 30mm A Nominal + 45mm B 33mm B 33mm C 76mm C 76mm D 31mm D 36mm E Actual neck + 15mm E Actual neck + 9mmComputer room floor grilles - BS Heavy Grade Stock productSeries CFLG 600mm2 units are kept in stock for quick delivery.Designed to suit raised access flooring systems, computer room floorgrilles have been tested to BS EN 13264:2001.Manufactured from extruded aluminium throughout, the grilles havesupreme strength, yet are lightweight enough to allow one man to liftand fit comfortably. www.airtherm.co.uk 5
  6. 6. Grille & diffuser range continuedFixed blade swirl diffusers Stock productSeries FSW The following sizes are kept in stock for quick delivery,Fixed blade swirl diffusers are extremely effective diffusion units. They RAL9010 finish.create a downward throw of swirling air which rapidly pulls insurrounding air, mixing the supplied and resident air very effectively. 254mm, 356mm, 457mm, 533mm (Core sizes) SWF A (mm) B (mm) C (mm) D (mm) 1 595 254 80 40 2 595 356 100 40 3 595 457 160 40 4 595 533 200 40Adjustable blade swirl diffusers Stock productSeries SWA Adjustable blade swirl diffusers are kept in stock for quick delivery,Just like their fixed counterparts, adjustable swirls are extemely RAL9010 finish.effective diffusion units.Instead of pressed blades fixed at an angle, these have individuallyadjustable, matt black deflector blades set behind the face. Thisallows clockwise, anti-clockwise or straight down throws to be created. SWA A (mm) B (mm) C (mm) 1 595 537 240 Dimensions explained on fixed swirl diagram. Dimension B describes diameter between outermost points of deflector blades. Not a small spigot as with fixed swirls. 6 www.airtherm.co.uk
  7. 7. Ceiling diffusers Stock productSeries CD The following sizes of four way blow ceiling diffuser are kept in stock forA consistently popular product, ceiling diffusers are found in almost quick delivery.every commercial building. RAL9010 finish, with and without opposed blade dampers.Made from extruded aluminium throughout, ceiling diffusers are 1502, 2002, 2252, 3002, 3752, 5952 Overall faceguaranteed to be rattle free, unlike some cheaper pressed models.All sizes under 1200mm x 1200mm have a spring-loaded removablecore as standard.Drum jet diffusersSeries DJSProviding an exceptionally long throw, drum jet diffusers are supplyunits capable of handling large air volumes whilst also givingmaximum control over throw direction.Stock productAll sizes shown in the table are kept in stock for quick delivery, in bothRAL9010 and satin anodised finish. Size Nominal (mm) Overall (mm) Depth Depth c/w Depth W H W H c/w OBD OBD & VED A 244 297 B 321 373 164 208 62 106 194 C 473 525 D 625 678 E 524 576 F 651 703 259 303 100 144 232 G 778 830 H 905 957 www.airtherm.co.uk 7
  8. 8. Grille & diffuser range continuedLinear slot diffusersSeries LSDCommonly seen in commercial installations, runs of unlimited lengthscan be created using multiple linear slot diffusers.When used for supply, matt black internal deflectors can be specifiedenabling throw adjustment. End caps and pressure equalising gridscan also be specified.Slot boxes to suit can also be supplied. Overall face Actual Slot number (mm) neck (mm) 1 76 40 2 115 78 3 154 117 4 193 155 5 232 193 6 271 232 7 310 270 8 349 309Linear ceiling diffusersSeries LCDMuch like linear bar grilles in construction, linear ceiling diffusers use alarger 45° blade set at a 20mm pitch. This creates a large free area forhigh air volumes, whilst also having the blade surface to deflect aireffectively.Available in one or two way blow models, with two ways having anequal or unequal split. 32mm bevelled (Opt) 25mm flat flange (Std) A Nominal + 45mm A Nominal + 30mm B 46mm B 46mm C 91mm C 91mm D 25mm D 32mm 8 www.airtherm.co.uk
  9. 9. Perforated plate diffusersSeries PPDUsing the same outer frame as standard louvre faced ceiling diffusers,perforated plate diffusers are tamper resistant, and create a stablethrow creating areas of clean supplied air.This is in contrast to other units like ceiling diffusers which aredesigned to mix supplied and resident air as quickly as possible.Small format circular diffusersSeries SFCDANormally found in arenas, exhibition centres etc, circular diffusers aresuitable for use in large open plan areas requiring high changeoverrates. SIZE DIMENSIONS (mm) A B C 150 257 149 225 200 307 199 275 250 357 249 325 300 407 299 375 350 457 349 425 www.airtherm.co.uk 9
  10. 10. Grille & diffuser range continuedPressed steel grilles, diffusers and registers Intumescent fire blocksA cost effective type of grille, normally used in domestic warm air Fire rated for 1 hour, intumescent fire blocks expand quickly whenheating systems. Can also be used in fire doors in conjunction with exposed to flames to create a barrier through which fire and smokeintumescent fire blocks or slimline fire dampers. cannot pass. The intumescent material is covered with a smooth finish to help prevent dust build up and aiding cleaning. Pressed steel ceiling diffuser No.28 Type B Pressed steel floor diffuser Incorporates a cord operated damper Incorporates a roller operated damper Pressed steel grille No damper Pressed steel register Incorporates a lever operated damper 10 www.airtherm.co.uk
  11. 11. Curved access doorsSeries ADCGalvanised steel with blue plastic handles. Rubber seal between innerand outer parts seals the duct once the door is tightened. Stock product The following sizes are kept in stock for quick delivery. Size To suit duct diameter 180mm x 80mnm 100mm / 125mm 250mm x 150mm 150mm / 160mm 250mm x 150mm 180mm / 200mm 250mm x 150mm 250mm 250mm x 150mm 300mm / 315mm 250mm x 150mm 350mm / 355mm 250mm x 150mm 400mm / 500mm 400mm x 300mm 400mm 400mm x 300mm 450mm 400mm x 300mm 500mm 400mm x 300mm 560mm 400mm x 300mm 630mm 400mm x 300mm 710mmSingle blade dampers Stock productSeries SBD The following sizes are kept in stock for quick delivery.A cost effective volume control damper for use in small diameterductwork where a full shut off is not required. 100mm, 125mm, 150mm, 200mm, 250mm, 300mm, 315mm.Fitted with a locking quadrant for simple operation.Body length 170mm on all sizes. www.airtherm.co.uk 11
  12. 12. Grille & diffuser rangePlenum boxesSeries PBAlthough not a grille or diffuser, plenum boxes are just as integral inthe majority of ventilation systems.Fire rated plenum boxes are available.Grille & diffuser optionsPolyester powder coating Grille/Diffuser type PPC OBD NotesThe majority of grilles and diffusers shown in the catalogue can bepolyester powder coated to any RAL or BS colour. Single deflection Fixed bladeSome products cannot be powder coated due to plastic parts etc.Please see the table. Double deflection Egg crate Non visionNylon coating Curved blade Perforated plateA specialist finish, nylon coating is used in favour of polyester coatingwhere extreme durability or resistance to static electricity build up is Linear barneeded. Computer room floorThese qualities mean computer room floor grilles are often nylon Pressed steel grille xcoated, as static electricity build-ups in data centres can be Pressed steel register Includes damperdisasterous. x x Pressed steel diffuser x x Includes damper Ceiling diffuser Drum jetOpposed blade dampers Linear slotFitted to the rear of many grilles and diffusers, opposed blade Linear ceilingdampers are used to trim the airflow through the terminal. Circular diffuser x Includes butterfly damperSuitable for use in supply or extract situations. Fixed swirl xPlease see the table for which products can be fitted with OBDs. Adjustable swirl x x RAL9010 only 12 www.airtherm.co.uk
  13. 13. Aluminium dampersVolume control damperSeries VCDA large format, all aluminium damper, HVC VCDs can be made inlarger sizes than their steel counterparts.Using a protected push rod linkage means these dampers requireminimal torque to operate, even at large sizes.Back draught shutter / Non return damperSeries BDSDesigned to permit airflow in one direction only, back draught shuttersare fully aluminium for excellent durability.Blades can be linked and weighted if required to enable the damper toopen only once the required pressure has been reached. www.airtherm.co.uk 13
  14. 14. External louvre rangeStandard single bank louvres Stainless steel & galvanised louvresSeries WL Series WLSS & WLG38mm, 50mm and 75mm pitch single bank louvres. Bespoke made to order, stainless and galvanised louvres can be made to replicate a regular format or custom made to your ownSingle bank of blades provide good protection against rain ingress, dimensions.whilst preserving 50% free area for high airflow. Grades of stainless available are 430, 316 and 304.Flanged, reversed frame, recessed frame and concealed (not on 38pitch) units available. Bird and insect mesh optional. Stock product WL100 The following sizes of 38mm pitch standard louvre are kept in stock for quick delivery. WL75 Mill finish, powder coating to RAL/BS colour optional. 1502, 2002, 2502, 3002, 3502, 4002, 4502, 5002, 5502, 6002, 7002, 8002, 9002, 10002 WL50 WL38 14 www.airtherm.co.uk
  15. 15. Acoustic louvresSeries ALUsing a two part hollow aluminium blade forming a cavity which isthen filled with mineral wool, acoustic louvres prevent noise transferwithout impeding airflow.Available in 150mm, 300mm (standard) and 600mm deep models.Sand trap louvresSeries STL BSRIA testing to BS EN 13181:2001Designed to be the first stage of filtration, sand trap louvres catch and Tested by BSRIA to BS EN 13181:2001, sand trap louvres have beencollect airbourne particles like sand and grit which would otherwise proven over 90% effective at 0.5m/s wind velocity, and over 60%clog up finer filters inside the ventilation system. effective at 1 m/s wind velocity.Constructed from two banks of interlocking vertical channels, allstraight paths through the unit are eliminated. Any caught materialthen falls onto the slanted cill and is ejected through the front of thelouvre. www.airtherm.co.uk 15
  16. 16. External louvre rangeHigh performance louvres - Class ASeries HPLWith the addition of two banks of vertical channels behind a standardlouvre, high performance louvres have been tested to confirmed togive Class A levels of rain protection at velocities up to 0.5m/s.The channels prevent any straight path through the unit, catching anyrain or spray which made it past the louvre blades. This caught waterthen falls onto a special slanted drip cill which quickly ejects it throughthe louvre face.Penthouse louvres Options include:Series PHL Ÿ Doors.Commonly used in natural ventilation systems, penthouse louvres areperfect for high efficiency installations, like the new generation of Ÿ Internal dividers (insulated or un-insulated).school buildings and hospitals. Ÿ Flat, single slant, double slant and HIP roofs.Class A Penthouse Louvres can be manufactured using the sameblade arrangement as high performance louvres shown above. 16 www.airtherm.co.uk
  17. 17. External louvre optionsPolyester powder coating Bird meshAll louvres shown in the catalogue can be polyester powder coated to Screwed to the back of louvre blades, bird mesh prevents largeany RAL or BS colour. objects like leaves, rubbish and birds being able to penetrate the louvre. Bird mesh has no real effect on airflow.Nylon coatingA specialist finish, nylon coating is used in favour of polyester coatingwhere extreme durability or resistance to static electricity build up is Insect meshneeded. With much smaller gaps than bird mesh, insect mesh prevents all but the smallest objects penetrating the louvre. The vast majority of insects and debris are caught.Fixing methods Insect mesh will reduce a louvre’s free area.Although normally drilled on site, louvres can be supplied with facefixing holes in the flange, or rear mounted fixing lugs. www.airtherm.co.uk 17
  18. 18. Steel dampersS100 Fire Dampers CertificationS100 Fire Dampers are standard fusible link operated curtain type fire S100 Fire Dampers have been tested to and passed:dampers. BS1366-2 (ISO10294-1): 4 Hour fire test at 300 Pa.Spring driven to enable installation in vertical or horizontal alignments, Test conducted by Building Research Establishment.S100 dampers are available with HEVAC, plasterboard or curtainframes and can be fitted with fixing lugs to suit drop rod installa BS476-20: 6 Hour fire test. Test conducted by Warrington FRC. Fire damper cases are manufactured in accordance with DW144. Options Installation frames: HEVAC Plasterboard Curtain Fixing lugs Material: Fully galvanised Stainless blade pack & galvanised case Fully stainless Stainless available in 430, 316 and 304 grades. Connection types: Square spigotted Circular spigotted Flat oval spigottedS200 & S300 Fire Dampers Certification: S200S200 fire dampers are designed to be fitted inside ductwork and as S200 Fire Dampers have been tested to and passed:such have no spigot. Spring driven they can be installed vertically orhorizontally. BS1366-2 (ISO10294-1): 4 Hour fire test at 300 Pa. Test conducted by Building Research Establishment.S300 fire dampers are designed for use in fire doors as an alternativeto intumescent dampers. Exceptionally slim at 38mm deep, they are BS476-20: 6 Hour fire test.gravity driven and so must be installed vertically with the blade pack at Test conducted by Warrington FRC.the top. Certification: S300 S300 Fire Dampers have been tested to and passed: BS476-20: 6 Hour fire test. Test conducted by Warrington FRC. Options Material: Fully galvanised Stainless blade pack & galvanised case Fully stainless Stainless available in 430, 316 and 304 grades. Connection types: Square flanged 18 www.airtherm.co.uk
  19. 19. S600 Fire Smoke Dampers CertificationS600 Fire Smoke Dampers are as much a life safety device as a way S600 Fire Smoke Dampers have been tested to and passed:to protect buildings. Having an opposed blade construction and fittedwith actuators, they can be remote operated upon detection of smoke BS476-20: 6 Hour fire test.or fire anywhere in a building. Test conducted by Warrington FRC.We can supply and fit the full range of Belimo Fire Smoke Damper Fire damper cases are manufactured in accordance with DW142.actuators to S600 dampers. Options Installation frames: HEVAC Plasterboard Curtain Fixing lugs Material: Fully galvanised Stainless blade pack & galvanised case Fully stainless Stainless available in 430, 316 and 304 grades. Connection types: Square spigotted Circular spigotted Flat oval spigottedS900 Volume Control Dampers OptionsS900 Volume Control Dampers are a general purpose unit, best suited Material: Fully galvanisedto sizes under 1m2. Manufactured from roll formed galvanised or Stainless blades & galvanised casestainless steel and with a fully protected gear drive mechanism, S900 Aluminium blades and galvanised caseVCDs are extremely durable and require minimal maintenance. Fully stainless Stainless available in 430, 316 and 304 grades.We can supply and fit the full range of Belimo actuators to your newS900 Volume Control Dampers. Connection types: Square flanged Square spigotted Circular spigotted Flat oval spigotted www.airtherm.co.uk 19
  20. 20. Plastic dampers for natural ventilationOverviewUltra high shut offExcellent corrosion resistance The revolutionary uPVC Volume control damperincorporates a copyrighted and never before seenfeature for a plastic volume damper. It’s unprecedentedperformance originates with the unique ‘EccentricAerofoil’© blade design. This unieu, incorporates ablade with an off centre axis. This enables the edge seal to be complete, anduninterrupted by blade axles. Combine this with theintegrated, specially designed blade nose seal whichfuses the blades together on closure, a performanceemulating that of a full shut off damper is achieved,whilst still providing the excellent functionality of atraditional volume control damper. uPVC volume control damper showing total sealSpecifications: Corrosion resistance Precision linkage In coastal or swimming pool Manufactured from highlyMaterials: Extruded uPVC frame and blades. applications, traditional steel corrosion resistant materials, the dampers will corrode very custom designed gearset is so Integrated flexible plastic blade nose seals. quickly. uPVC on the other hand precise it can drive up to 10 has excellent resistance to salt blades and cogs with very limited Brush side seals. and chlorine, and cannot rust. play, for maximum performance even at large sizes. Rolled steel section inside each blade for reinforcement (not exposed to airstream). Stainless steel screws to join frame (not exposed to airstream).Finish: White.Sizes: Minimum size 300mm x 300mm / 300mm Ø. Maximum size 1000mm x 1000mm / 1000mm Ø. Above these sizes units would be made in sections. 20 www.airtherm.co.uk
  21. 21. Model A - Square, no spigot. Model B - Square, spigotted. Model C - Circular, spigotted. Model D - Flat oval, spigotted.Ultra high shut off In independent tests, large format uPVC volume control dampers Leakage (1000mm x 806mm uPVC VCD)yielded leakage results normally only achieved by dedicated shut offdampers. m3/s m3/hr/m m3/hr/m2 10Pa 0 0 0 The VCD sent for testing had a nominal size of 1000mm x806mm, the large size tantamount to our confidence in the damper. 25Pa 0.000857 0.29 3.83 50Pa 0.002850 0.97 12.73 With even 10Pa rarely being exceeded in natural ventilationsituations, it is clear how uPVC volume control dampers can 75Pa 0.004975 1.69 22.22enhance the efficiency of your new natural ventilation system. 100Pa 0.005398 1.83 24.11 150Pa 0.007909 2.68 35.33No cold bridge Thermal conductivity of steel and Close a steel or aluminium volume control damper, and you will aluminium*go on losing heat, not through airflow but conduction of heat fromone side to the other. Steel Aluminium W/mK 40 250 HVC large format uPVC volume control dampers have a Btu 23.12 144.46theoretical U value of 0.973W/m2K when closed, atleast 40 timesbetter than a steel damper and 250 times better than an aluminiumunit. Of course this can help to cut heating bills, and reduces thecarbon footprint of any building using them.*Figures sourced from www.engineeringtoolbox.com www.airtherm.co.uk 21
  22. 22. Ÿ Flues & chimneysŸ Natural ventilation & lightingŸ Kitchen ventilationŸ Air ConditioningŸ Heat pumps & renewablesŸ Solar photovoltaic T: 0844 809 2509 F: 01562 887312 M: 07715 360958 sales@airtherm.co.uk Unit 8a Gainsborough Trading Estate Rufford Roadw w w .a irthe rm.c o.uk Stourbridge West Midlands DY9 7ND

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