Our range of combined intumescent fire + smoke air transfer grilles can be used in all applications where cold smoke containment is required. 00DG-3 - Double Flange Door/Transfer Grille DESCRIPTION: Construction: Frame and blades are 6063 extruded aluminum alloy with 200-R1 satin anodized finish. Gilberts NV Series provides a comprehensive and traditional range of vision proof grilles to suit all manner and type of air transfer application through doors, walls and partitions. 1 800 222 5932. The grilles are carefully constructed to be unobtrusive in appearance for architectural excellence. Speci˚ed Door Opening Speci˚ed Door Opening - 1/8 1 5 16 2 13 32 Model : XG-DGCO ( Door / Transfer Grille - Core Only ) Model : XG-DGSF ( Door / Transfer Grille - Single Flange Frame ) Model : XG-DGDF ( Door / Transfer Grille - Double Flange Frame ) Model : XG-DGLP ( Door / Transfer Grille - Light Resistant ) Face View ( Models: XG-DGDF &Lorient has been developing high quality intumescent air transfer grilles for over 40 years; combining air movement with fire protection & making buildings s. The only place I can install transfer grilles is above the doors. Heavy duty registers and grilles work well in any application where the air volume is large and easy removal for cleaning is required. The frames are of 0. A transfer grille or grate is a panel or fitting with an opening allowing air or sound to move from one room to another. HVC Supplies also offers one of the. 5 to 92 mm. 7" x 3. Easy to assemble. Lancashire FY4 4QT. In many cases, pipes and ducts. when doors are closed. TAMARACK R. Floor diffusers. My 1st choice would be jumper ducts for aesthetics and better air volume capabilities. Really Helps with transfer air and the rooms feel more comfortable when the door is closed since the air pressure is not building up without a way to return to the air handler. My question is, can you essentially install a duct from the location of the grille, to somewhere else inside the house? (for instance down a hallway, it will still have a vent for air return, just moving that away from my actual. 1 Double Defl ection Grille AUR 6 1. Aluminum Construction. The DGC is manufactured as per the DG but in a channel frame. Manufactured using modern<br />. 012 200. Door / Transfer Grilles Products Matching Your Selection METALAIRE is the flagship brand of Metal Industries Inc. ) Ak Factor Core Velocity Velocity Pressure Neg. Use either jumper ducts in the ceiling, or install a grille low on the bedroom wall, and then high on the hallway wall, to minimize sound transfer. Width : 1025 mm. Gilberts FB700 Series presents a range of Mild Steel Louvred Grilles designed to satisfy all types of air transfer application in offices, shops, schools, hospitals and many other. and is greater in size than transfer. , offering a complete line of air distribution and air terminal. Especially useful for narrow doors or fireblock installations. Returns are complicated much more so that the supplies. Fisher & Paykel 48" Grill with Infrared Sear Burner, LP Gas - BE1-48RCI-L. 5 Egg Crate Grille (13Mm) AEC 23 1. ) Ak Factor Core Velocity Pressure Neg. Blade Grille. Single & Double Deflection Grilles. The paintwork for Contour's Anti-Ligature Ventilation Grille is integrated with Biocote® anti-microbial additives to inhibit the growth of bacteria by up to 99. Available in nominal 1" (25) increments. The sight–proof blade configuration and unobtrusive appearance make Krueger’s 600/5600 series grille an ideal choice for wall or door air transfer from room to room. “While undercutting doors can create part of the return air path, wall transfer grilles or jump ducts should be installed to prevent the return problems,” the Building Science Corporation warns. For the size of the installation hole, see Dimensions (L-10)x (H-10). Aluminum Construction. If the doors are going to be closed, then returns are needed. GRILLES AND REGISTERS F DOOR/TRANSFER GRILLES PERFORMANCE DATA: DOOR/TRANSFER GRILLES – 5100 AND 6100 SERIES MODELS: 51DG, 61DG Listed Duct Size (inches) Alternate Sizes (inches) Core Area (sq. With any distribution system, there must be a return path for the energy distributing fluid. Lorient Code of Conduct. Manufacturer : Madel. Door controls. Door Transfer Grille • 51DG, 61DG • Word Document [. To provide a pathway for air from rooms with closed doors to these central return registers, builders can use door undercuts or install transfer grilles or jump ducts. Floor diffusers. Enter SIte. That does not even come close to the negative pressure issues it throws the rest of the home into. 0 ( 0) From £4. 0 metres per second, thenGRILLES AND REGISTERS F DOOR/TRANSFER GRILLES PERFORMANCE DATA: DOOR/TRANSFER GRILLES – 5100 AND 6100 SERIES MODELS: 51DG, 61DG Listed Duct Size (inches) Alternate Sizes (inches) Core Area (sq. Name. 5mm. 005 150. Over the last 135 years we've produced architectural quality metal works for some of the biggest brands on the planet, yet we don't forget our. IP£X grille rating that provides an open area of 23%. On the roof, 3 number penthouses, ranging from 1m x 1. Want free delivery? Add £200 more. 47 L/s) for each 50 square feet (4. 1 KB Views: 234. Air Flow : 21 m3/h. 53. uk HomeThe ATG/BF comes complete with mounting flange plus a loose telescopic rear flange to suit a minimum thickness of 42mm up to a maximum thickness of 110mm door or partition. Install the Pyroplex Fire. View an intumescent ATG fire test here. Intumescent air transfer grilles to satisfy air transfer application in doors. - Economic Stock Availablity. Volume dampers or other means of supply air adjustment shall be provided in the branch ducts or at each individual duct register, grille or diffuser. Introduction Gilberts NV Series provides a comprehensive and traditional range of vision proof grilles to suit all manner and type of air transfer application through doors, walls and partitions. 01457 866 010. Our Acoustic Transfer Grilles are available in a range of sizes and finishes to suit your requirements. AG40 Bar Grille. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. Envirograf Firoblok | Intumescent Sleeve for Services - Silver, 360 X 204 X 60mm. Also associated with high pressure. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. Domestic Warm Air Grilles. Showing 11 of 122 products. Sight-Proof (ATG1) + Finely spaced, chevron style blades provide an attractive sight-proof appearance. The grill will be larger than you think, at least 18" square. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. Door/Transfer Grilles. Check out my articles linked. We can accommodate bespoke sizes or larger quantities – please get in touch with our team on 02920 857. Telephone: (01253) 766911 Fax: (01253) 767941Door Grille. My question is, can you essentially install a duct from the location of the grille, to somewhere else inside the house? (for instance down a hallway, it will still have a vent for air return, just moving that away from my actual. Single Core with Flat Frame. Introduction Gilberts FB Series provides a compact, efficient range of intumescent fire dampers designed to satisfy all types of air transfer application in offices, shops, schools, hospitals and many other commercial projects. SERIES OPTIONS WGF/75:Comprises of 16 SWG LouvresThe grille is also suitable as a general replacement for 600sq floor tiles where areas of heavy foot traffic and equipment would be experienced. jpg. 0006 0. 175m3/sGilberts’ NV/6 non vision transfer grilles are surface mounted into doors and blockwork, allowing the passage of air and light whilst obscuring vision, whilst the Smokeguard dampers allow ventilation view a drive mechanism that enables airflow in normal circumstances, closing to prevent smoke and flame penetration in the event of a fire. w. 7 m2) of under-floor area, including a return air pathway to the common area (such as a duct or transferAcoustic, smoke + fire containment systems. 10 Wigford Road Masons Mill Pietermaritzburg Tel. ) Ak Factor Core Velocity Velocity Pressure Neg. SG-SD. 001. fitting a conventional grille to a wall or door will totally negate other measures taken to prevent the spread of fire, hot smoke andGrilles Type AH · WAP · AF Installation situation Type AH, AF ≥X Nomenclature ‡ in l/s/m based on 1000mm nominal grille length . Series FB Air Transfer Grille. Jet diffusers. The negative pressure on that duct of your HVAC system will mess with the air distribution in weird (bad) ways, and it's almost certainly not big enough for what the dryer will be trying to pull. Even more important is the operation of these systems, particularly mechanical and plumbing. Download. Series GECA-RC Removable Core Eggcrate Grilles. Custom designed to meet all architectural and HVAC industry standards, our linear bar grilles will provide you with optimum durability and performance in any environment without sacrificing aesthetic appeal. Grilles; Registers; Diffusers; Air Distribution; Fire Dampers; Access Doors; Air and Sound Controls; Louvers and Dampers. 004 0. +27 (0)33 398 1006 Fax. Door grilles are required for the transfer of air from one room to another Material Door grille manufactured from. 5m/s and NC level less than 15. This is partly due to a privacy issue. Bright White or Satin Anodized finish. Length : 80 mm. * Note: 30mm protrusion with minimum depth of door DSR/425/285/9010-Matt Type Nominal width Nominal height Finish ORDER EXAMPLE Nominal W x H + 51 Nominal W x H - 25 60 Nominal W x H 40. ft. 02576. We supply a range of Stainless Steel ventilation grilles, trickle vents, hit and miss vents. A fire-rated version is also available. With. Transfer grille examples to alleviate pressure differences. With a choice of sizes, materials, finishes and features we can provide the correct product for any application. Grille face made of aluminium with anodised finish 30 mm wide front border Countersunk holes Optional equipment and accessories Grille face in RAL CLASSIC colours Installation subframe Matching rear frame for door installation. Transfer units. Type NV4 Set of two lightproof core grilles with 32mm flange borders. ft. Colour : Buff,Silver,White. Lattice and perforated security grilles reduce the risk of damage and disassembly associated with traditional grilles in secure areas. H Nominal grille heigh t. Gilberts NV Series provides a comprehensive and traditional range of vision proof grilles to suit all manner and type of air transfer application through doors, walls and partitions. Download catalogue. A range. The transfer grille sizing includes allowance for one 32" by 1/2" door undercut. Actuator (location varies) 8. Submit a request online and get a quote from your local representative within 4 hours. Cover grille (not included) Duct SERIES FB Door, Wall & Partition Mounting Intumescent Fire Dampers Gilberts FB Series provides a compact, eficient range of intumescent ire dampers designed to satisfy all types of air transfer application in ofices, shops, schools, hospitals and many other commercial projects. 301. Available in either steel or aluminum construction with either single or double flange frame options. Take a flow hood and check cfm with the door open and the door closed, with a 1" undercut on a bedroom door you will have a serious cfm drop. 14 (58 grilles required) 0. These are specially designed which also giving a pleasing appearance to suit architectural needs. Contact Us. Maximum size is 36" x 36" (914 x 914). Countersunk holes. Learn More >Search 109 Victoria door replacement installers to find the best door contractor or installer for your project. 25. Introduction. WFV, WFVG, WFG Fire-rated Air Transfer Grilles. RETURN EXHAUST GRILLES FIXED BLADES AT 35° DEFLECTION — STEEL Steel, double deflection supply grille, 3/4" blade spacing, front blades parallel to short dimension. Modern Slavery Policy. GILBERTS Head Office and Works GILBERTS (BLACKPOOL) LTD Gilair Works, Clifton Road, Blackpool. We take great pride in offering an exceptionally high level of customer service and in building long-term relationships with our clients, whether they be consultants. The 61DG Series Door Grille may also be used as a transfer grille and in place of standard design exhaust and return air grilles where it is important that the interior of the plenum or duct be concealed. Gilberts Non-Vision Louvred Grille | Air Transfer Grille Cover. For air transfer applications, the channel section core with integral noise absorption. Door Transfer Grille Ordering Specification Sizing Finish Introduction Gilberts AV1601 Series presents an attractive alternative to traditional vision proof door mounting air transfer grilles. Download Now. 001. Allowing air movement through a door or wall without compromising fire integrity. Single Louver Grilles: Titus’ 300/350 Series supply grilles define the standard for the industry. Send us a messageFire and Smoke Resistant Dampers / Air Transfer Grilles System Benefits 3 Product Range 4 - 5 Operation 6 Lorient Smoke Control Systems 6 - 8 Product Solutions 9 - 18 - Doors 13 - 14. DL. When posting in certain forums, knowing your location will. Pyrogrille air transfer grille allows free air flow and provides up to 60 minutes fire protection. The DV series are large format grilles for door ventilator applications. These grilles also have a 6mm vermin proof mesh fitted to both faces, so unwelcome. We are a manufacturer of Grilles, Diffusers and Louvres with a special emphasis in the fabrication and technical knowledge of Swirl Diffusers. Air transfer grilles. Lorient Intumescent Air Transfer Grilles are used to provide an answer to situations where ventilation is required in fire compartment walls or doors. 5mm Pitch Neck Size = List Height - 15 50mm Opening Size = List Width x Height Introduction Gilberts SS-GE Series provides a comprehensive range of stainless steel Eggcrate type grilles to suit all types of extractTRANSFER (OR) DOOR GRILLES TRANSFER GRILLES TECNALCO 4 DGT-1 DGT-2 Engineering and Performance Data Transfer Grilles The tabulated performance data includes Volume of air, Area factor and Discharge velocity. Can be used to provide resistance to fire and hot smoke of up to 60 minutes in doors and walls. Heavy. Alternatively, please contact TENMAT for details of suppliers of finished grilles complete with steel frame and steel faceplate louvres. The LVN20 is a non-vision intumescent air transfer grille. Designed for. Volume flow rate range 4 – 535 l/s or 14 – 1926 m³/h. Drop one in one side then go on the other wall behind and drop the other in. 002 0. We are the world's oldest manufacturer of decorative metal grilles. The Perfect Balance In-Door Return Air Pathway is a Durable ABS plastic grille with a noise and light dampening baffle that is installed into the bottom of interior doors. w. ft. View Products. XG-DG Series. Use two needle nose pliers and adjust the louvers to a more open position. The units, which satisfy BS 476 Part 22, incorporate intumescent elements which expand and carbonise when exposed to temperatures in excess of 150 C, thereby sealing off the ventilation opening. Gilberts Blackpool. Introduction Gilberts AV1601 Series presents an attractive alternative to traditional vision proof door mounting air transfer grilles. . 55 KB: Preview: waterloo-air-products-plc_ns-non-vision-transfer-grilles_photo_3_d32b8ba8-bdc8. Please note - A very. NV6 is a Vision proof flanged grille suitable for surface mounting onto doors, wall or partitions. ) Nominal Size Core Velocity (fpm) 100 150 200 250 300 350 400 Velocity Pressure (in. fitting a conventional grille to a wall or door will totally negate other measures taken to prevent the spread of fire, hot smoke andGrilles Type AH · WAP · AF Installation situation Type AH, AF ≥X Nomenclature ‡ in l/s/m based on 1000mm nominal grille length . TRH (Transfer grilles) 1. The LVN25 is a non-vision intumescent air transfer grille. This air transfer grille cover is suitable for both standard air transfer and fire rated applications. Long throw, high capacity supply grille with rotating drum. Door undercuts are often obstructed by carpets further reducing return pathways. Pressure drops for ‘L’ core include entrance loss as well as resistance due to two cores placed side to side. 9% and improve hygiene. Discreet, but attractive, this robust extruded aluminium grille incorporates a slotted, linear airway across its length and locates at the bottom of the door. Can provide 180 minutes fire resistance. If you’re in the process of soundproofing a room, you might be in a little pickle if you have to deal with an above door air pathway transfer grill, most com. A. Air Transfer Grille Introduction Gilberts FB700 Series presents a range of Mild Steel Louvred Grilles designed to satisfy all types of air transfer application in offices, shops, schools, hospitals and many other commercial projects. <br><br>The Perfect Balance In-Door Return Air Pathway is designed to maintain adequate air flow between rooms and eliminate pressure imbalancesallowing each room. These are connected, via a control panel, to a standard fire alarm system. AG60 Bar Grille. frame: telescopic frame suitable for doors or partitions from 25 – 55 mm thickness (fixed on both sides of the door) material: extruded aluminium profile for frame and blades: sizes:Above door transfer grilles. The DG door transfer grilles are designed for use in doors where constant air transfer with non-vision is required. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. That grille is either just an open transfer that let's the air leave the room via pressure differential so it can get back to the air handler or it's a ducted grille (not usually) that goes back to the air handler. If it’s a load bearing wall with a big header above the door jamb leave it as is, if it’s just to hold the drywall you can reframe accordingly. Clearance dimension 430x75 mm. Transfer Grille Baffle. Construction is from all aluminium extrusion with fixed full chevron blades. SERIES OPTIONS WGF/75:Comprises of 16 SWG Louvres NV3 Grille. Go to. Introduction Gilberts AV1601 Series presents an attractive alternative to traditional vision proof door mounting air transfer grilles. 81 + VAT. Jet diffusers. Grille (optional – supplied by others) 5. Grilles are available in a range of sizes and offer up to 60 minutes integrity in accordance with BS 476-22. e. Typical Building Sector : Commercial,Dom. Optional equipment and. sales@gdl. A range. DG-3 - Double Flange Door/Transfer Grille DESCRIPTION: Construction: Frame and blades are 6063 extruded aluminum alloy with 200-R1 satin anodized finish. Exterior Stainless Steel Safety Door Grill, For Home ₹ 900/ Square Feet. Rack and pinion. SERIES FB700 Air Transfer Grille Gilberts. One grille is located high on the wall on. Day-to-day this enables efficient ventilation but during a fire will seal shut, stopping the fire spreading further. Transfer grilles shall use 50 square inches (of grille area) to 100 cfm (of. Heavy duty registers and grilles work well in any application where the air volume is large and easy removal for cleaning is required. Allows for air transfer through doors or walls. DSR units will only provide acoustic isolation improvements over that of a clear aperture. It adjusts to suit a door thickness from 1-3/8" to 1-7/8". Duct registers, grilles and diffusers shall be installed in accordance with the manufacturer’s instructions. other commercial projects. 048 350. These airflow volumes are then used to size and lay out the ducts. 01924 444 174 sales@briteair. HVC Supplies offer one of the widest ranges of grilles, diffusers, louvre systems, volume control dampers and fire dampers available from any UK manufacturer, with our range being constantly expanded to suit new industry requirements and customer demands. Use your stud finder and level to map out the exact location where you’re going to cut through the wallboard. Optional equipment and. Lorient Intumescent Air Transfer Grilles are suitable for ventilation in fire compartment walls or doors. In the event of an alarm condition, or power failure, the dampers shut, preventing the passage of cold smoke. The above-door transfer grille simply has two grilles located above the door between the room and common space, one on each wall, with offset baffles to limit sound transmission. 5mm coldTransfer Grille Baffle. PERFORMANCE DATA ATG1/ATG2 Core Area (sq. The aluminium ‘V’ shape chevron blade mounted on a close 8mm pitch renders see through vision impossible and when double banked in a matt Grille Options & Accessories. Iron Maindoor Laser Safety Grill, For Home ₹. Even more important is the operation of these systems, particularly mechanical and plumbing. The problem is that sound (and a small amount of light) pass freely through the vents negating all privacy of closing the door. 51DG Series Door Grille may also be used as a transfer grille and in place of standard design exhaust and return air grilles where it is important that the interior of the plenum or duct be concealed. ) Nominal Size Core Velocity (fpm) 100 150 200 250 300 350 400 Velocity Pressure (in. It adjusts to suit a door thickness from 1-3/8" to 1-7/8". Make your expertise uniquely valuable. GILBERTS DAMPERS 8 MAY 2005 PUBLICATION Features 60 or 120 Minute Fire Rating. Also, if the crawlspace access door is left open, it may not be discovered for some time. 8 m 2), the closet door shall be undercut a minimum of 1. Non-vision air transfer grilles, made of aluminium, withRETURN GRILLE DOOR/TRANSFER GRILLES MODELS: DG-I, DG-2, DG-3 DG-I CORE ONLY 11/16" 5/16" DG-2 Single Flange SUSTATNABLE EXTRUDED ALUMINUM Dimensions are in inches (mm) a DG-I Core only Door Transfer Glille a DG-2 Single Flange Door Transfer Glille a DG-3 Double Flange Door Transfer Glille OPTIONS: 11/16". The above-door transfer grille simply has two grilles located above the door between the room and common space, one on each wall, with offset baffles to limit sound transmission. Where return air is taken from a closet smaller than 30 square feet (2. V-shaped Deflection Vanes Set on 1/2” Centers. 19. 30 mm wide front border. Home; Fan Finder;Non-vision air transfer grilles, made of aluminium, with fixed horizontal blades. P. These are particularly suitable for doors to staircases etc. View Product. View Products. Ross MacGugan of Ernest Griffiths, explains: “Gilberts’ grilles and diffusers were the most suitable technically and aesthetically for the project. We supply a range of Stainless Steel ventilation grilles, trickle vents, hit and miss vents. 6" Inch Door Air Vent Grille Two Sided Ventilation Cover - White - Overflow Ventilation Grill - Door Vent Cover - Free AIR Flow Between Rooms -. Model GPS is a Pressed Steel Grille suitable. From standard grilles and registers, to its architectural line of Formations® linear slot diffusers, along with a newly released series of displacement. DOWNLOAD PRODUCT SPECIFICATIONS USING PRODUCT IMAGE. 61EC - Steel Frame, Eggcrate. Acoustic, smoke + fire containment systems. It may be surprising that just these three systems — mechanical, electrical and plumbing (MEP) — can make up as much as 15% of the total environmental footprint of a building's. But wherever air moves, fire and smoke can travel too. 0006 0. They allow free movement of air but allow no sight of one side from the other. Supplied in 2. Available Accessories 3. Transfer ducts may achieve this by increasing the return transfer 1 1 / 2 times the cross sectional area (square inches) of the supply duct entering the room or space it is serving and the door having at least an unrestricted 1-inch undercut to achieve proper return air balance. 020 inch water column) is acceptable for rooms with a design airflow ≥150 cfm. 008. Registered in England and Wales: 673483. Steel Maximum Security Transfer Grille with Rounded Perforations. Jet velocity is approx 1. 01924 444 174 [email protected] could be soil gases such as radon or fumes from paints, pesticides, or fuel stored in the crawlspace. Supplied in two pieces it lends itself to easy installation in a standard 54mm thick fire door, + when finished with a colour co-ordinated edge flange, results in an attractive but efficient air transfer feature. Door Furniture; Drawers and Drawer Runners; Eyes; Feet; Fixings Fasteners; Formed Section; Gastronorm Containers; Gates; Glass Canopy; Handles. CT-700L. The air vent grille cover can be door or wall mounted and is made from quality 20swg mild steel. Is it ever OK to install a transfer grille? Sure. when doors are open. 02576. Ideal for low velocity air handling systems, it can be operated as a stand-alone unit. Domestic Warm Air Heating Grilles. Transfer grilles are designed for use in doors and partitions to allow for smooth transfer of air between spaces. The next steps are to perform testing to validate the CFD model for room-to-room air transfer via over-door and bottom-of-door transfer grilles, with the eventual goal of using that model to determine the expected airflow volume through the transfer grilles under various conditions. to return. Please note the existing silver finish will now be supplied in a new industry-standard satin silver finish of RAL 9006. View Product. Door Transfer Grilles. The damper units are slimline with an overall thickness of only 35mm, allowing these kits to be flush fitted within the conventional 35mm & 45mm nominal fire door leaves. - Quality 0. We are always on hand to help advise on suitability. GRILLES 9 OCTOBER 2021 PUBLICATION Features - Door or Wall Mounted. Suitable for use in doors, Modern Slavery Policy. The Perfect Balance In-Door Return Air Pathway is a Durable ABS plastic grille with a noise and light dampening baffle that is installed into the bottom of interior doors. Working from. Sight-Proof Door Grille. The LVN20S provides a unique solution to the problem of containing both fire + smoke in emergency conditions yet offering good air transfer through doors in everyday use. , offering a complete line of air distribution and air terminal products. Gilberts NV Series provides a comprehensive and traditional range of vision proof grilles to suit all manner and type of air transfer application through doors, walls and partitions. Air Velocity : 75 m/s. Browse a range of intumescent vents also known as air transfer grilles and fire vents. docx] Performance Data. pattern: vision proof inverted ‘v’ shape horizontal cross section blades arranged to overlap each other. g. A high performance, standard vision intumescent air transfer grille for walls, doors and ventilation ducts. Heavy Duty Registers and Grilles. (Matt black finish). Our weather louvres, louvre screens, clip-on louvres, penthouse louvres and louvre doors are provided with high quality paint finishes and accessories to suit your individual requirements. Series K Fixed Blade Grilles. 4 Return Air Grille ARG 19 1. Product 150 Intumescent Ventilation Grilles (SVG & HMG)blades. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. Lorient has been developing high quality intumescent air transfer grilles for over 40 years; combining air movement with fire protection & making buildings s. Introduction<br /> <strong>Gilberts</strong> FB700 Series presents a range of Mild Steel<br /> Louvred Grilles designed to satisfy all types of air transfer<br />. 19. General. From the family garage to 70,000 square feet today. ArchiExpo offers ventilation grates and. Includes Grille, Installation Screws, Baffle, Sheet Metal Housing. AGS. Extract air diffusers. ) 0. The easiest way to reduce noise traveling through them is to cover them with an absorptive or sound-blocking material. 2. See the top reviewed local door contractors & installers in Victoria, BC. 60% Free Area. Slim-profile, versatile intumescent block grilles for use in ceilings, doors, walls or ducting. GILBERTS Head Office and Works Gilberts FB Series provides a compact, efficient range of intumescent fire dampers designed to satisfy all types of air transfer application in offices, shops, schools, hospitals and many other commercial projects. Typical Building Sector : Commercial,Dom. Model includes a v-shaped louver providing a sightproof return or exhaust grille regardless of the viewing angle. We are also able to custom fabricate products to suit your specific architectural requirements. Displacement diffusers.