6171Revision: Date: Units: Page: Model: ® OF Submittal: XG-DGDFSS Stainless Door Grilles Door. 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. Model DG-FC Louvre Grilles are available in stock sizes and can. Alternatively, please contact TENMAT for details of suppliers of finished grilles complete with steel frame and steel faceplate louvres. Duct diffusers. recent projects include: Harrow Crown Courts Walton Prison (Segregation. We are the world's oldest manufacturer of decorative metal grilles. Minimum size is 6" x 4" (152 x 102). Aluminum Transfer Grille (ATG) Overview. Nominal sizes 150 × 105 – 1500 × 985 mm. ft. Jet diffusers. A collection of intumescent air transfer grilles offering protection against fire. Transfer grilles shall use 50 square inches (of grille area) to 100 cfm. 01924 444 174 sales@briteair. Clean-room diffusers. Their special features make them ideal for placing in doorways and interior walls. In a fire, our intumescent air transfer grilles expand to form a solid block that stops fire spreading. Description. DG-3 - Double Flange Door/Transfer Grille DESCRIPTION: Construction: Frame and blades are 6063 extruded aluminum alloy with 200-R1 satin anodized finish. P. Lorient Code of Conduct. NV4: Slimline surface mounted with a non-chevron blade, designed to suit fire doors. Mar 23 2021. Even more important is the operation of these systems, particularly mechanical and plumbing. The only place I can install transfer grilles is above the doors. The standard finish will be RAL9010 or polyester powder coated to. Manufacturer : Madel. Curtain Rails Collapsible rails and safety track Curtain Tracking Avoid gaps in fixed tracking Curtain Wires Avoid use of curtain wiresThe Advanced Air Model Series 51DG Door Transfer/Non-Vision Grilles are designed to meet the demand for top quality andcompetitive prices. Operation: The units are operated by a 24V DC electrical supply. 3. 30 mm wide front border. NV1 is the Vision proof core only. PERFORMANCE DATA STG Core Area (sq. A chef inspired food truck, centred around humanly raised meats that are cured and processed in “hAir 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,. Fire 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. TAMARACK R. with a door sleeve and electrical door wiring loop for a 45mm or 54mm door or a wall sleeve only, for a wall/partition. 01924 444 174 [email protected] could be soil gases such as radon or fumes from paints, pesticides, or fuel stored in the crawlspace. 35m3/s TYPE GFX/600/1 Max pressure drop of 3 Pa required. 4. Transfer Grilles offer the largest free area possible with the option of a sight-proof or light-proof core. Table 1RCM PRODUCTS, 12-14 Sunbeam Road, Kempston, Bedford, MK42 7BY T: 01234 843303 F: 01908 483930 E: [email protected]Transfer grilles are designed for use in doors and partitions to allow for smooth transfer of air between spaces. Air Flow : 21 m3/h. Available Options 4. AGS-T. Please watch our corporate video. Go to. Series L Linear Bar Grilles. Private conversations and loud noises can easily be. ft. transfer of room air to another, i. Series XG-DG extruded aluminum door grilles are designed to transfer air through doors or walls. Steel Maximum Security Transfer Grille with Rounded Perforations. Feb 13 2020. SERIES FB700 Air Transfer Grille Gilberts. 304 Stainless Steel Construction (Optional 316 Stainless Steel) Z-Shaped Deflection Vanes Set on 1” Centers. +27 (0)33 398 1100. The LVH intumescent air transfer grilles available from Lorient Pty Ltd are specifically designed for use in fire rated door assemblies where pressure relief or extra ventilation is required. Type NV4 Set of two lightproof core grilles with 32mm flange borders. Save. Using the same intumescent louvred slat configuration as the LVN20, but incorporating an electro mechanically operated smoke shutter mechanism. Skip to contentThe IFD-D intumescent door grille kit is suitable for new or existing Proprietary fire resistant doorsets that may require air transfer or pressure relief. The DV series are large format grilles for door ventilator applications. Maybe you can have transfer grilles installed to those rooms verse ducted returns. Door / Transfer Grilles Products Matching Your Selection METALAIRE is the flagship brand of Metal Industries Inc. Sight-Proof Door Grille. 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. That does not even come close to the negative pressure issues it throws the rest of the home into. Height : 1005 mm. dimensions: 788 x 788 mm H • Fitting dimensions: 7 mm more than the grille dimensions. 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. Series GECA-RC Removable Core Eggcrate Grilles. PERFORMANCE DATA STG Core Area (sq. Gilberts has built a reputation for providing an extensive range of contemporary, value engineered products at the best in competitive. These grilles also have a 6mm vermin proof mesh fitted to both faces, so unwelcome. 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. 30 mm wide front border. grill. Duct registers, grilles and diffusers shall be installed in accordance with the manufacturer’s instructions. DSR units may be used in series to increase transmission loss. With a dedicated design team working on both new developments and. See the top reviewed local door contractors & installers in Victoria, BC. Allaway Acoustics. 008 0. Reply to. 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. Can be used to provide resistance to fire and hot smoke of up to 60 minutes in doors and walls. HVAC OV 17. 006 0. BBB Start with Trust ®. comDoor Grille TROX (South Africa) (Pty) Ltd. Favorite. 001. PAGE 145888-757-4774. 7mm Mild Steel Construction. 1 800 222 5932. door aluminium. 001. Discreet, but attractive, this robust extruded aluminium grille incorporates a slotted, linear airway across its length and locates at the bottom of the door single doors, double doors and louvre screens. A collection of intumescent air transfer grilles offering protection against fire. 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. Type NV6 Vision proof langed grille suitable for surface mounting onto doors, wall or. H Nominal grille heigh t. Model includes a v-shaped louver providing a sightproof return or exhaust grille regardless of the viewing angle. Normally, when there is ducted returns, the filter is located at the air handler. Name. Ideal for low velocity air handling systems, it can be operated as a stand-alone unit. Polyaire Product Catalogue - Door Relief Grille. 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. ” In light of this, what exactly are transfer grilles? Typically, a transfer grille or register is inserted in the wall or above a door to link a closed room with an open area such as a corridor or living room, so giving a second. Available in nominal 2" (51) increments. DG-3 - Double Flange Door/Transfer Grille. Exterior Stainless Steel Safety Door Grill, For Home ₹ 900/ Square Feet. 450x92. In this case, their height will be determined by your system. Gilberts’ NV3 door transfer grilles allow Regulatory flow of fresh air whilst being vision proof. Series GP Security Grilles. A fire-rated version is also available. 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. 1 Find Your Rep. 51EC - Aluminum • Eggcrate • Core Only. <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. Door/Transfer Grilles. Click here to download. JPG. NV6 is a Vision proof flanged grille suitable for surface mounting onto doors, wall or partitions. Now I am down to the transfer grille or the jumper duct. 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. press machinery and production techniques the FB700 is<br />. 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. 2 sq. Supplied in two pieces it lends itself to easy installation in a standard 44mm thick fire door, + when finished with a colour co-ordinated edge flange, results in an attractive but efficient air transfer feature. Series GP Security Grilles. 8 Aluminium Door Grille AADR 34 1. TROX Easy Product Finder Fast. Description. Pyrogrille air transfer grille allows free air flow and provides up to 60 minutes fire protection. 5m/s and NC level less than 15. SG-SD. Discover our wide range of products within the Door grilles category and benefit from 20+ years of expertise Personal advice Competitive prices. 7" x 3. With a choice of sizes, materials, finishes and features we can provide the correct product for any application. 020 inch water column) is acceptable for rooms with a design airflow ≥150 cfm. TRH-A series grilles have a simple design which makes them useful for incorporation in all styles of architecture. 001 0. Nominal sizes 225 × 125 – 1225 × 525 mm. Item number: 35013002. Intumescent air transfer grilles serve the same purpose but also expand when exposed to heat from a fire, sealing the gap in a fire door or wall – meaning the fire rating of the compartment is maintained. LVH20S intumescent fire + smokeThe Ligature Resistant Retrofit Exhaust/Supply Grille is designed to replace existing grilles that are not ligature resistant. 10 Wigford Road Masons Mill Pietermaritzburg Tel. Submit a request online and get a quote from your local representative within 4 hours. 2. CERTIFICATIONS. ls in m = Throw distance to a bmaximum time averaged air vel ocity of 0. Extract air diffusers. Get Quote. James Gilbert & Son specialises in high quality decorative metalwork. GREENHECK heavy duty grilles are an excellent choice for return or exhaust in high traffic areas such as gymnasiums. 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. £7. Recommended price. The ventilators. Extensive product range. 55 KB: Preview: waterloo-air-products-plc_ns-non-vision-transfer-grilles_photo_3_d32b8ba8-bdc8. Suitable for use in doors, walls or partitions the dampers are fabricated from thin Our range includes circular cast louvres, which are ideal for bathroom extractor fans, penthouse/turret weather louvres for roof mounted ventilation, weather louvre cladding for easy assembly on-site. 010. Allowing air movement through a door or wall without compromising fire integrity. 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. Both the Halton TVC grille and opposite frame are screwed to the wall or door. We are the world's oldest manufacturer of decorative metal grilles. 008 0. Blades are chevron in configreation and are mounted in a fixed position ina rigid PVC track in an integral part of the frame. High – low transfer grilles. When mounted into a door, our telescopic frame can facilitate a door thickness between 28 and 52mm, with light tight or vision proof cores to meet the application requirement. In the event of an alarm condition, or power failure, the dampers shut, preventing the passage of cold smoke. Heavy duty registers and grilles work well in any application where the air volume is large and easy removal for cleaning is required. 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. Standard finish is natural anodised while other finishes including powder coat are available to suit the interior and architectural design requirements. #2 · Sep 12, 2012. Series L Linear Bar Grilles. X. Can be used to provide resistance to fire and hot smoke of up to 60 minutes in doors and walls. - Standard or Fireblock Air Transfer Application . Volume flow rate range 2 – 850 l/s or 7 – 3060 m³/h. Louvred Grilles designed to satisfy all types of air transfer<br />. 004. com 0344 856 0594. 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. 6" Inch Door Air Vent Grille Two Sided Ventilation Cover - White - Overflow Ventilation Grill - Door Vent Cover - Free AIR Flow Between Rooms -. These are often used in bathroom doors and mechanical room doors for the purpose of allowing make up air to enter the room when the fan is on and the door is closed. An electromechanically operated shutter smoke mechanism closes its slats in the event of a fire alarm going off, thus stopping cold smoke and flames from passing. From standard grilles and registers, to its architectural line of Formations® linear slot diffusers, along with a newly released series of displacement. for applications where the grilles need to withstand abuse. AG60 Bar Grille. Grilles & LouvresContact Supplier Request a quote. Intumescent air transfer grilles allow movement of air when fitted into doors, walls and ductwork in a building. A transfer grille or grate is a panel or fitting with an opening allowing air or sound to move from one room to another. Gilberts Non-Vision Louvred Grille | Air Transfer Grille Cover. ALN, ALM, ALF, ALG, ALJ Airline Linear Grilles 14 APF, APG, APJ, APN, APM Plasterline Linear Grilles 16 UC / UF / UE Urban Grilles 17 Door / Sidewall Grilles NS, DV, NSNL Air Transfer Grilles 18 DSR, DSRX Acoustic Air Transfer Grilles 19 T P W Ss e l l i r G l l a w e d i 20 WFV, WFVG Fire Rated Air Transfer Grilles 21 Floor GrillesWaterloo transfer Grilles are suitable for mounting in doors, partitions and Walls to allow ventilation air to pass between adjacent rooms. 8 m 2), the closet door shall be undercut a minimum of 1. Series PE Perforated Face Extract Grilles. The range is available with a wide variety of frame and fixing options to suit various design needs. 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 . Introduction Gilberts AV1601 Series presents an attractive alternative to traditional vision proof door mounting air transfer grilles. Door grilles provide visual security and limits light while allowing air transfer through doors or walls. View Product. ) Ak Factor Core Velocity Pressure Neg. 200. Info-604: Transfer Ducts and Grilles. TransShield ACS is a slimline non-vision intumescent fire and smoke damper with a unique sliding plate smoke control system. With minimum and maximum security options as well as a variety of mounting types, these grilles are suitable for supply and return applications. Share. 2. recent projects include: Harrow Crown Courts Walton Prison (Segregation. The Perfect Balance is a transfer grill designed to fit in the door. Canadian iron main entrance doors gate grill design single door $35. Optional equipment and. Polyaire Product Catalogue - Door Relief Grille. Welcome to dba Air Solutions Ltd. Excellent for installation in doors or partitions. 5 40mm 8mm Overall Size = List or Height + 57mm Overall Sizes = List + 67mm (+0/-1) 25mm Pitch 12. Please note the existing silver finish will now be supplied in a new industry-standard satin silver finish of RAL 9006. Save4. Favorite. Now I am down to the transfer grille or the jumper duct. London’s Decorative Metalwork and Metal Grille Specialist. 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. Linear Bar Grille Frame Styles. 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. supplied by Gilberts with each Grille batch. 18 Registers, grilles and diffusers. Showing 11 of 122 products. 71 inchesTransfer Grilles should not be fitted on doors which are required for smoke sealing compliance. docx] Performance Data. Discreet, but attractive, this robust extruded aluminium grille incorporates a slotted, linear airway across its length and locates at the bottom of the door. Envirograf Firoblok | Intumescent Sleeve for Services - Silver, 360 X 204 X 60mm. 4. Telephone: (01253) 766911 Fax: (01253) 767941Door Grille. Meanwhile, the house is directly connected to the outside through that transfer grille. Available in nominal 1" (25) increments. Lorient LVH44 – 300 x 300mm Intumescent Grille. GILBERTS Head Office and Works GILBERTS (BLACKPOOL) LTD Gilair Works, Clifton Road, Blackpool. 1 Double Defl ection Grille AUR 6 1. Allows window to remain and door closed for a room when operating a whole house fan. Designed for. Door grilles provide visual security and limits light while allowing air transfer through doors or walls. uk HomeDoor grilles are seldom used nowadays for two reasons 1. Easy to assemble. Titus Door transfer grilles are great for use indoors and partitions. door transfer grille. Download the pdf to learn. 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. VIEW XG-DG Series. 002. ft. 006 0. , offering a complete line of air distribution and air terminal products. Download. 0006 0. ) Nominal Size Core Velocity (fpm) 100 150 200 250 300 350 400 Velocity Pressure (in. 02576. ) 0. 001. AG20 Bar Grille. We supply a range of Stainless Steel ventilation grilles, trickle vents, hit and miss vents. Many have duct work in crawlspaces, so the registers are placed in the floor. Grilles are fitted into walls and some doors; and ductwork to keep fresh air circulating. ft. 1"x3. Nailor 51DG and 61DG Series Door Grilles are designed to be. And with an experienced team of Sales. Available Finishes 2. Introduction Gilberts AV1601 Series presents an attractive alternative to traditional vision proof door mounting air transfer grilles. Behind the scenes, numerous FB700 door transfer grilles and NV (non vision) were installed to maintain fire compartments, with FBL60 (one hour intumescent) fire blocks for optimum safety. 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. openings", but undercut doors, and/or transfer grilles (if large enough) located near the floor could meet the requirment of this portion of the standard. The only place I can install transfer grilles is above the doors. Designed for wall or partition mounting. If transfer grilles or jump ducts are used, refer to the balancing report provided by the HVAC contractor for the bedroom air flows to size the grilles or ducts. DL. co. Such spaces include storage rooms and restrooms. Transfer Grille Sizing Calculations. The LVH intumescent air transfer grilles available from Lorient Pty Ltd are specifically designed for use in fire rated door assemblies where pressure relief or extra ventilation is required. 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. Countersunk holes. Series SK Heavy Duty. <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. December 19, 2020 ·. We can supply vents in a bespoke design to suit your requirements. HVC Supplies also offers one of the. Intumescent Air Transfer Grille. Aluminum door grilles. Original plan was to take my central air return in the hallway and stub ducts in the attic to get individual air returns to each bedroom. Series FB. 301. Gilberts Series SS ‘Airsteel’. Fisher & Paykel 36" Grill with Infrared Sear Burner, LP Gas. The DGC door transfer cavity grille are the most economical form of grilles for partitions, panels or sliding doors. Cut the wallboard using your drywall saw and set the metal frame in place. Single Core with Flat Frame. Send us a message. Sort by. Grilles are available in a range of sizes and offer up to 60 minutes integrity in accordance with BS 476-22. ) 0. jpg. Acoustic, smoke + fire containment systems. Est. Door Furniture; Drawers and Drawer Runners; Eyes; Feet; Fixings Fasteners; Formed Section; Gastronorm Containers; Gates; Glass Canopy; Handles. OVERALL SIZE LIST HEIGHT OR WIDTH + 45mm 13mm 32mm 25mm 75mm 48mm 98mm 19mm LIST HEIGHT OR WIDTH - 19mm Pitch INSIDE SIZE OF DUCT OR TIMBER GROUND = LIST HEIGHT OR WIDTH OF GRILLERETURN 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". They offer a large free area for great performance yet have a sight proof design. Formed in 1987, DBA Air Solutions have provided advice, support and a wide ranging source of knowledge within the HVAC industry for over 30 years. 359. Conditioned air supply sized to deliver at a rate equal to 1 cubic foot per minute (0. 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. Air Flow : 21 m3/h. uk . LOUVRES. Transfer grilles are designed for use in doors and partitions to allow for smooth transfer of air between spaces. application in offices, shops, schools, hospitals and many<br />. View Product. acoustic transfer grill 468AK/2. Recommended price. 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. The grille vanes are individually adjustable to allow jet spread or deflection to be set within 45 of the duct axis. Construction is from all aluminium extrusion with fixed full chevron blades. Box 410, Schofield, WI 54476Phone: 715. Visit the Quietcool Store. To be used where air movement/flow via fan is stopped in the event of a fire. This is partly due to a privacy issue. Innovative. Includes Grille, Installation Screws, Baffle, Sheet Metal Housing. Applications. , offering a complete line of air distribution and air terminal. Product SA - Search A-Z Find out quickly and simply. 0 ( 0) From £4. Compare. Designed for door mounting. 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. ITEM # MODEL SIZE (") 720541 350RL 20 × 18 720542 350RL 20 × 20 720544350RL 22 × 22 720545 350RL 24 × 6 720546 350RL 24 × 8 720548350RL 24 × 10 720557 350RL 24. Du ctodamp esl v ni 7. The range is available with a wide variety of frame and fixing options to suit various design needs. 5 to 92 mm. 001. 1. NV3 is a Vision proof core in 32mm flanged border with matching telescopic back flange. Both the Halton TVC grille and opposite frame are screwed to the wall or door. 3 Slimline Floor Grille ASGF 15 1. James Gilbert & Son specialises in high quality decorative metalwork. £7. introduced through air transfer grilles mounted in the 2 doors that give access to the ward. pattern: vision proof inverted ‘v’ shape horizontal cross section blades arranged to overlap each other. Air Handling Units, Ceiling Cassettes, Wall Mounted. A variety of frame types and mounting options are available to suit any application. These airflow volumes are then used to size and lay out the ducts. Acoustic Air Transfer Grilles Description. Is it ever OK to install a transfer grille? Sure. 61DGD - Steel • Double Flange. The DG door transfer grilles are designed for use in doors where constant air transfer with non-vision is required. IMG_0186. Especially useful for narrow doors or fireblock installations. Reliable. 1 KB Views: 234. I just finished building a new home and as part of the Energy Star rating transfer grilles were installed above each of the bedroom doors to allow air exchange when the doors are closed. SERIES OPTIONS WGF/75:Comprises of 16 SWG Louvres NV3 Grille. Air Ventilation Grilles, Fixed Blade & Adjustable Louvres, Ventilation Diffusers, Air Supply & Air Exhaust Valves, HVAC Grilles, Air Security Grilles, VAV & CAV Units, Radiant Panels and Trench Heating supplies from the industries leading manufacturer. London’s Decorative Metalwork and Metal Grille Specialist. 9 Slimline Weather Louvre AWLS 37 1. 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. 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. A range. ft. ago. THE name in air distribution products, providing engineered solutions to air distribution projects for over 60 years. Fascia Cover Grilles For Fascia Grille options please refer to Gilberts Air Distribution Catalogue “Grilles” section Damper & Mounting Frame Damper with vertical blades for air passage and 15mm returned edge all round for ixing to structure. Share.