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Linear grilles – Series 30

Linear grilles – Series 30
19Pages

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Linear grilles

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CONTENTS Linear grilles 2 Linear floor grilles 3 Quick selection table 4 High Induction Linear grilles 13 Quick selection table 15

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Linear grilles Description Type 31-1 aluminium grilles, fixed blades, deflection 0°. Type 31-15 aluminium grilles, fixed blades, deflection 15°. Finishes Anodised aluminium in its natural colour. Special finishes available upon request. Dimensions for use with mounting frame When the grilles are fixed with a metal frame, the size of the opening corresponds to the nominal size of the grilles. For example, a grille of 500 x 300 would require an opening of the same dimensions. Dimensions for screw mounting 31-1 integrated in drop ceiling plate When the grilles are fixed with screws, the size...

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Linear floor grilles DV Description Type 31-1-F aluminium grilles, fixed blades, deflection 0°. Type 31-15 -F aluminium grilles, fixed blades, deflection 15°. Finishes Aluminium in its natural colour (not anodised). Special finishes available upon request. Dimensions The normalised dimensions are for a rebate in the floor of 21 mm. To calculate the dimension of the opening, both length and height should be increased 27 mm. Special dimensions are available on request. 31-1-F or 31-15-F O Accesories The grilles can incorporate volume control damper type 29-O and directional grille type G....

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The selection should take into account, for a given air flow rate, the sound level and throw. The throws in the Quick Selection Table corresponds to a terminal velocity in the occupied zone of 0,25 m/s. Example Requirements: Air flow rate350 m3/h Throw3.5 m plus corrections Sound levelbelow 20 dB(A) ApplicationMedical consult room Required pressure lossbelow 10 Pa Effective velocitybelow 3 m/s Location of grillein wall, at 0.3 m from the ceiling Before entering the Table, the corrected throw (Xc) should be calculated based on throw (X), distance (h) of the grille to the ceiling. Xc = X /...

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Floor grilles for technical floors Description Heavy duty floor grilles, series 31-1-FS (deflection 0°) or 31-15-FS (deflection 15°), are specially designed to replace 600 x 600 floor tiles in raised access floor systems. Heavy duty floor grilles are manufactured in extruded aluminium, finished in its natural colour without anodised. The standard dimension is 600 x 600 (599 x 599 overall) and 600 x 300, on request others dimensions can be manufactured, in order to adapt these grilles to any type of floors. They can incorporate an opposed blade damper type 29-O, as well as a directional...

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General dimensions and sizes General dimensions of grilles type 30. Wall and ceiling. 31-1-SB Thickness of the grille without frame = 31-15-SB 19 mm (equal to the blade height) Frame model 24 mm, rest of frames on page 10. Mounting systems and blade types. Installation in ceiling or wall Standard system with clips System with clips and mounting frame 31-1-F-O 31-15-F-O System for screwing with punched frame (on request) Examples of fixing system on-site Standard system

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Lateral clips Frame models Frame of 24 mm Concealed frame mounting

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Filterholder Model Sport Model Without frame i. - NOMINAL LENGTH (Opining) H - NOMINAL HEIGTH (Opining) 31-1-NM model with beveled frame (preferably for floor installations).

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ACCESSORIES AND MOUNTING Type MM Metallic frame for grille mounting. Only for types 31-1, 31-15, 31-1-20 and 31-1-11. Screw mounting Placing the grille in the opening, it can be screwed directly onto the wall, sheet duct, etc. For mounting in fibre ducts it is recommended that the metallic mounting frame MM is used. Fixing with mounting frame Once the metallic frame is located into the wall opening (fasteners are incorporated in the frame), the grille can be placed. Pressing lightly the grille will be attached perfectly to the mounting frame by means of pressure clips. Note: The mounting...

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The volume control damper 29-0 modifies the values of sound level and pressure loss given in the selection table. Hereafter, and in the corresponding graph sound levels and total pressure losses (APt) are presented for the grille including the volume control damper as a function of the parameters Vk (effective velocity) and percentage of opening of the damper (min, 1/2, max.). The graph expresses sound level NR as sound power level (without room attenuation) for the combination of grille and damper 29-0. The value of Vk in the graph is that for the grille without damper. A correction factor...

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Series 30 Coding Wall coding 31 Series, aluminium grille SPORT Specific for sport areas FF Filterholder Identification All grille dimensions are defined by length (L) and followed by height (H). L x H is the dimension of the free opening. When the grille does not incorporate a mounting frame but is prepared for screwing, the dimension of the opening will be L-5 mm x H-5 mm. For mounting with lateral clips, the dimension of the free opening will be equal to the nominal dimension of the grille. Without indication, not incorporated O Volume control damper type 29-0 Without indication,...

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Series 30High induction linear grille Description The 31-HI high-induction linear grilles were specifically designed to cover the interior design needs, with a low noise level and excellent diffusion behavior. Comprised of a detachable central core that allows the fin deflection angle to be adjusted from 5° to 15° upward or downward. The fin design provided high levels of induction, allowing homogeneous mixing with ambient air, preventing air currents and stratifications in the occupied area. The grilles meet the following requirements: • High degree of air diffusion and induction. •...

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Dimensions Dimensions for use with mounting frame When the grilles are fixed with a metal frame, the size of the clear opening corresponds to the nominal dimension of the grilles. For example, a grille of 500 x 300 would require a clear opening of the same dimensions.

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Symbols a (°) Second deflection angle X (m) Throw for a terminal air velocity of 0,25 m/s within the occupied area. Lw - dB(A) Sound power noise level. Pst (Pa) Pressure drop. < Sound power noise level less than 15 dB(A).

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Linear grilles – Series 30 19Pages

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Linear grilles – Series 30
19Pages