LINEAR BAR GRILLES. GRILLES-Linear Bar

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1 LINEAR BAR GRILLES A range of linear bar grilles with horizontal blades at either 0, 15, 0 or 45 deflection and fixed or removable cores. Usually used in sidewall applications, but they are also designed to be used in s or, in the case of the 0 and 15 deflection, for light floor duty. Standard. etails of the standard blade spacing, angles of deflection and frame types with the appropriate model references are shown on pages 22, 2 and 24. STANAR SPECIFICATION STANAR SPECIFICATION SIZES Use (Fixed core only or removable cores). The nominal duct size can be any length from 100mm to 2000mm in one piece and height in increments equivalent to the blade spacing from 50mm to 1200mm. A run longer than 2000mm can be made up to any length by manufacturing the grille in sections provided the nominal height is not more than 600mm. The sections will butt up to each other to give a continuous appearance. Alignment plates (Code 098) are provided for the borders on multiple section grilles. Use Fixed cores The nominal duct size can be any length from 100mm to 2000mm in one piece and height in increments equivalent to the blade spacing from 50mm to 600mm. A run longer than 2000mm can be made up to any length by manufacturing the grille in sections. Alignment plates (Code 098) for the borders are provided for multiple section grilles. Removable cores Any nominal length from 100mm to 1000mm in one piece and any height from 50mm to 600mm in i ncrements equivalent to blade spacing. A run longer than 1000mm can be made up to any length by manufacturing the grille in sections provided the nominal height is not more than 600mm. The sections will butt up to each other to give a continuous appearance. Alignment plates (Code 098) for the borders are provided for multiple section grilles. Lay in Cores Same as for the removeable cores above except that maximum length is limited to 1000mm, as on Grille. It is essential that any mounted linear grilles with re-movable or lay in cores are fitted with safety wires.these limitations on size are imposed for safety reasons. Use (Fixed or lay in cores only) The nominal duct size can be any length from 100mm to 2000mm in one piece and the height from 50mm to 00mm in increments equivalent to the blade spacing. A run longer than 2000mm can be made up to any length by manufacturing the grille in sections. The sections will butt up to each other to give a continuous appearance. Alignment plates (Code 0647) for the borders are provided for multiple section grilles. CONSTRUCTION Aluminium with mechanical joints to lock the mitred corners. CORE STYLES The cores are either fixed, removable/lay in or core only. The removable cores are retained by either spring loaded buttons or horseshoe clips on the cross mullions when mounted in the vertical and by horseshoe clips or laying the core in the frame when mounted in the horizontal. See following pages for details of the core styles and codes. FINISH Silver satin anodised to BS1615 AA5. FIXINGS All codes, except the flangeless and spring location clip models, have countersunk screw holes in the border. Size no. 6 1 /2 self tapping screws provided with each grille and painted the same colour as the grille. (Fixing type 0F1) See Fixing Methods section for screw fixing centres. The flangeless models, except when floor mounted and supported under the frame, require a removable core and are fixed through the stack of the grille (Fixing type 0F7) and spring location clip models have un-punched borders and are located by spring clips. (Fixing type 0F8) It is important to make clear when ordering if you do not require fixing holes in the border, particularly if you are ordering a removable core model and want to use concealed fixing. G20

2 OPTIONAL ALTERNATIVES/AITIONS PAN AAPTORS, PLENUM & HEAER BOXES PACKAGING Each grille is individually shrink wrapped in polythene with additional cardboard support to the faces. Alignment plates are attached to one section in a linen draw-string bag. TECHNICAL INFORMATION See page 28 SIZES Non standard sizes. We are not able to manufacture sizes other than those shown under the standard specification. AMPERS Opposed blade damper. A clip on opposed blade damper (Code 0106) can be fitted, provided the nominal height does not exceed 450mm. The exceptions are all the fixed core linear grilles that have a blade pitch of 6.25mm and the 45 deflection with a blade pitch of mm because it is not possible to access the damper operator on these particular models, unless the core is removable. ampers cannot be fitted to mounted lay in models either. FINISHES Any BS, RAL or NCS colour. Code Please specify the colour reference. We suggest powder coating on top of anodising for swimming pool applications. It may also be possible to anodise to alternative finishes for substantial quantities. etails on request. FIXINGS Concealed fixings / sub-frames are available. (Fixing type OF) See Fixing Methods section. Please make sure that if you are fixing the grille by concealed methods, you order the grille with un-punched borders. The 0 in the product code becomes 9. MITRE CORNERS Angled mitred corners. Any angled corner section can be manufactured from 40 to 179. See page G27 for Codes and details. 2 WAY ISCHARGE Two way blow. Most of the 15, 0 and 45 models can be made as two way opposite blow with the blades parallel to the long dimension. The first figure in the code would be 9 not 0. Please contact Head Office for details. SAFETY WIRES Safety wires (Code 079) can be provided to attach the core to the border, where the core is removable, in order to minimise the possibility of accidents. They are fitted as standard on mounted removable core models. (Un-insulated) Top entry pan adaptor without flange (120mm high)*. Code 02. Top entry pan adaptor without flange (17mm high). Code 08. This height of pan adaptor should only be used where the spigot diameter plus 50mm is equal to or greater than the largest nominal dimension of the pan and the grille does not have a damper fitted to it. Top entry pan adaptor with flange*. Code 028. Side entry plenum flange for use on single grilles up to and including 2 metres in length*. Code 05. Side entry plenum with flange for use on single grilles up to and including 2 metres in length*. Code 024. Side entry header box without flange for use on continuous runs over 2 metres long without opposed blade dampers. Code 050. Side entry header box without flange for use on continuous runs over 2 metres long with opposed blade dampers. Code 062. Side entry header box with flange for use on continuous runs over 2 metres long without opposed blade dampers.code 06. Top entry header box with flange and flush fitting end caps for use on continuous runs over 2 metres long without dampers. Code 074. Top entry header box with flange and flush fitting end caps for use on continuous runs over 2 metres long with dampers. Code 064. Items with an * can be used on grilles with or without an opposed blade damper. Please see Sheet MetalWork section for details and codes for top entry plenum and header boxes, additional spigots and insulation for plenums and header boxes that are available. Pan adaptors, plenum boxes and header boxes can be fitted with quadrant dampers for either manual (Code 048) or cord operated (Code 0484) control. We can also design boxes with non standard heights where there is limited space above the or in the cavity. ORERING ETAILS The code for the basic product should have at least 1 digits. See page 1. Please always give the length first then the height. Add Codes for additions / alternatives as suffixes. Please make sure you order un-punched borders if you order concealed fixings. EXAMPLE: A linear grille to fit an opening 200mm long x 200mm high having 15 deflection blades, a removable core retained by horse-shoe clips, opposed blade damper, pan adaptor without flange, to be concealed fix through the stack of the grille and painted RAL 9010 satin would be coded:- 027/0200/ RAL 9010 satin, + OF2. (un-punched borders). Applications. Supply * Extract * * * * Transfer * G21

3 .mm Blades with 0 eflection mm Centres. FLANGE. Code 0221 Fixed Core. Code 084 Fixed Core. Spring Location Clips. Code 0402 Core Only. Code 0228 Removable Core Spring. Spring button. Code 025 Removable Core Spring. Spring Clip. Code 0242 Removable Core, Lay-in. 0mm clearance required above core. Code 0512 Frame Fixed Core.* Code 0516 Frame with lay-in Core.* RECESSE. Code 0452 Fixed Core.* + or Code 045 Lay-in Core.* Code 0624 Removable core. Spring Button. Code 0674 Fixed Core.* + * Need to be supported under frame when used in the floor. FREE AREA APPROXIMATELY 70% OF UCT CONNECTION Can OB mm Centres. FLANGE. Code 0222 Fixed Core. Code 082 Fixed Core. Spring Location Clips. Code 0400 Core Only. Code 0229 Removable Core Spring. Spring button. Code 026 Removable Core Spring. Spring Clip. Code 024 Removable Core, Lay-in Removable Core. 0mm clearance required above core. Code 0510 Frame Fixed Core.* Code 0514 Frame with lay-in Core.* RECESSE. Code 0450 Fixed Core.*+ & Code 0451 Lay-in Core. Code 062 Removable core. Spring Button. Code 0675 Fixed Core.* + FREE AREA APPROXIMATELY 42% OF UCT CONNECTION Can OB mm Centres. FLANGE. Code 0217 Fixed Core. Code 08 Fixed Core. Spring Location Clips. Code 0401 Core Only. Code 0225 Removable Core Spring. Spring button. Code 022 Removable Core Spring. Spring Clip. Code 028 Removable Core, Lay-in Removable Core. 0mm clearance required above core. Code 0511 Frame Fixed Core.* Code 0515 Frame with lay-in Core.* RECESSE. Code 0462 Fixed Core.*+ & Code 046 Lay-in Core. Code 0622 Removable core. Spring Button. Code 0676 Fixed Core.* + FREE AREA APPROXIMATELY 61% OF UCT CONNECTION Can OB G22

4 .mm Blades with 15 eflection 15 mm Centres. FLANGE. Code 020 Fixed Core. Code 091 Fixed Core. Spring Location Clips. Code 0405 Core Only. Code 021 Removable Core. Spring Button. Code 027 Removable Core. Spring Clip. Code 0244 Removable Core. Lay-in. 0mm clearance required above core. Code 051 Frame Fixed Core.* Code 0517 Frame Lay-in Core.* RECESSE Code 0458 Fixed Core.*+ Code 0459 Lay-in Core Code 0625 Removable Core. Spring Button Code 0678 Fixed Core.* + FREE AREA APPROXIMATELY 62% OF UCT CONNECTION Can OB.mm Blades with 0 eflection 0 mm Centres. FLANGE. Code 0251 Fixed Core. Code 092 Fixed Core. Spring Location Clips Code 0406 Core Only. Code 025 Removable Core. Spring Button. Code 0252 Removable Core. Spring Clip. Code 0254 Removable Core Lay-in. 0mm clearance required above core. RECESSE Code 0671 Fixed Core.*+ Code 0626 Removable Core. Spring Button FREE AREA APPROXIMATELY 60% OF UCT CONNECTION Can OB.mm Blades with 45 eflection 45 mm Centres. FLANGE. Code 0218 Fixed Core. Code 085 Fixed Core. Spring Location Clips. Code 040 Core Only. Code 0226 Removable Core. Spring Button. Code 02 Removable Cor.e Spring Clip. Code 029 Removable Core. Lay-in. 0mm Clearance Required Above Core. RECESSE Code 0627 Removable Cor.e Spring Button. Code 0670 Fixed Core.*+ FREE AREA APPROXIMATELY 59% OF UCT CONNECTION Can OB G2

5 .mm Blades with 45 eflection mm Centres. Flanged. Code 0219 Fixed Core. Code 090 Fixed Core. Spring Location Clips. Code 0404 Core Only. Code 0227 Re-movable Core. Spring Button. Code 024 Re-movable Core. Spring Clip. Code 0240 Re-movable Core. Lay-in. 0mm Clearance Required Above Core. RECESSE Code 0672 Fixed Core.*+ Code 067 Re-movable Core. Spring Button. + Fixing only through back of the stack or with duct straps. FREE AREA APPROXIMATELY 67% OF UCT CONNECTION Can OB Model shown is Code Linear Grille in a Flanged Frame, fitted with amper If Lay-in Core is Required, Code becomes Overall = + 5mm Max Clearance Over Stack = - 2mm Opening Size = For grille lengths less than and including 2m. The frame would be made in one section as below. 2000mm Max. 00mm Max Centres For grille runs greater than 2m but less than 4m, grille would be made in 2 equal sections as below Equal Equal For grille runs greater than 4m the length is divided The nearest number of equal sections below 2m long. Equal Equal Equal No end border fitted when part of a continuous run Mullions side 2m Max Length in 1 Section G24

6 mm mm Model shown is Code Linear Bar Grille with fixed core, blades with 0 deflection on mm centres and fitted with Opposed Blade amper Model shown is Code Linear Bar Grille with 0 deflection blades on mm centres. Removable core retained by Button Fasteners and fitted with Opposed Blade amper mm 0mm Min. Clearance For Core Removal mm mm Model shown is Code 028 Linear Bar Grille with 0 deflection blades On mm centres with Lay-in removable core + 0.5mm Pitch 2.7 X 19.5 Model shown is Code Linear Bar Grille with 0 deflection blades on mm centres. Removable core retained by Horseshoe Spring Clips. Fitted with Opposed Blade amper Code 0401 core only Linear Bar Grille 0 deflection blades on mm Centres Standard sizes for the dimension should be in mm increments Some intermediate aizes can be made by adjusting dimension X Contact Head Office for details + 5mm 100 Min mm Linear Grille with access door Suffix Code 0248 on Linear Model G25

7 Model shown is Code Linear Bar Grille 0 deflection blades on mm centres with fixed core In a Recessed Flangeless Frame with Opposed Blade amper. NOTE - the core can be Lay-in if the floor code becomes mm For grille lengths less than and including 2m. The frame would be made in one section as below. 2000mm Max. For grille runs greater than 2m but less than 4m, Grilles would be made In 2 equal sections as below Equal Equal For grille runs greater than 4m the length is divided into The nearest number of equal sections below 2m long. Equal Equal Equal Mullions side No end border fitted when part of a continuous run 00mm Max Centres 2m Max Length in 1 Section mm mm 5 Model shown is Code Linear Bar Grille With 0 deflection blade on mm centres with fixed core, located in a horizontal surface by Spring Location Clips. Fitted with an Opposed Blade amper. (Unpunched borders as standard) Not to be used in or vertical surfaces Model shown is Code Recessed Frame Linear Bar Grille 0 deflection blades on mm centres Removable core retained by Button Fasteners and fitted with Opposed Blade amper Caution: Fixing this type of frame with a fixed core is not possible. G26

8 Linear Grille Mitred Corner Code deflection blades on 6.25mm centres Code deflection blades on 0mm centres Code deflection blades on 18.75mm centres Code deflection blades on 0mm centres Code deflection blades on 18.75mm centres Code deflection blades on 0mm centres Code deflection blades on 0mm centres Inside Opening = Nominal Grille Height mm 00 Inside Opening = Nominal Grille Height mm Use Formula Nom Opening Use Formula 00 Inside 00 Inside Nom Opening To Calculate The Outside Length For Any Angle Other Than 90, Use The Formula Below First Calculate The Angle Of The Cut = (180 - ) divided by 2 Then The Outside Opening Length = [ (Nominal Opening mm) x Tan of The Angle Of Cut ] + 00mm e.g. Assume Nominal imension = 00mm and = 15 then angle of cut = (180-15) / 2 = 22.5 Outside Opening Length = [ ( mm) x Tan 22.5 ] + 00 = 41.5mm G27

9 PERFORMANCE ATA FOR LINEAR GRILLES This nomogram is based on Code 217 Linear Grilles and corrections should be applied for other codes. In the case of Linear grilles, the fixed parameters for selection are usually volume, throw and/or width of grille. To select for the volume and throw, the volume should be related to a metre run. For example, if the length is to be 500mm and the volume 0.15m /s, then volume per metre would be x 0.15 = 0.m /s/. If the required throw is 7 metres, place a ruler on the volume line at 0. and cross the throw line at 7 metres. The rule crosses the width line at 275mm. If there is a limitation on the width of the grille, say 200mm wide in the above case, and the throw was critical, then the length would have to be increased. esign throws should always be corrected using tables 1, 2, and 4 as appropriate, before entering the nomogram. Pressure drop and NR should be corrected after using the nomogram. PERFORMANCE ATA TABLE 1 Corrections for other Grilles ata given is for isothermal conditions and for free space application. No opposed blade damper. For dampers add 40% to the pressure drop and 5NR. Grille Type Pressure Correction Factors Sound Factors 4 10 Throw Factors Volume (Q) m /s/ metre run 2.0 Nominal Grille Width mm 000mm long x 0.8 x 0.8 x 0.8 x Pressure drop ( Pt ) Pa NRLW uct velocity m/s TABLE 2 Corrections to throw due to. Grille more than 600mm from Grille more than 600mm from 0 0 TABLE Throw corrections for length Grille Length (m) Factor Throw in metres. Terminal Velocity (Vt) 0.25m/s 0.04 TABLE 4 Throw corrections for other (V t ) TABLE 5 Sound corrections for length 0.0 Terminal Velocity Factor 0.25 m/s m/s m/s +0.5 Grille Length (m) Factor NR NR NR 0.02 G28