100 Series Regulating Dampers Overview Graphs 200 Series Outside Air Intake Louvers Overview Technical data Coding TAC -200 Series Outside Air Intake Louvers Overall Dimensions Load Loss Graphs Overpressure Damper 230 SP Example of Selection and Dimensions

100 Series Regulating Dampers Description Regulating damper with opposed and aerodynamic vanes, manufactured in aluminium (AOBD-102-E). The body of the damper has built-in air tight gaskets all around its inner perimeter to ensure a tight seal. The movement of the vanes is ensured by means of gears, achieving a proper friction, with manual or motor-driven operation. Manually Operated Model AOBD-102-E Manually Operated Model AOBD-102-E doublelength (L>1200) Vanes are available with 75 and 100 mm vane axis distances, to complete the entire range of standard duct dimensions. Flat parallel-vane (SOBD-105)...

The dimensions indicated below are standard for regulating dampers. Regarding the length and height, they can be manufactured using intermediate dimensions, with 50mm vane axis distances. Regulating damper model AOBD-102-E Regulating damper model SPBD-105 and SOBD-106 Model SPBD-105 / SOBD-106 double length (L>1200)

Load loss and air tightness graphs for aluminium regulating dampers Note: The air leak at damper AOBD-102-E is not greater than 2% in the closed position, with a static pressure of 1250 Pa. Example of Selection Knowing the air flow to be regulated by the damper, and using, for example, a front velocity of 6 m/s, the front surface of the damper can be obtained. This can be calculated using the following formula: Af(m2) = qv (m3/h) / Vf (m/s) • 3600 With an air flow rate (qv) of 10.800 m3/h, we obtain: Af (m2) = 10.800 / 6 • 3600= 0,50 m2 This would lead to an AOBD-102-E damper with a 1000 x 500...

TYPE SOBD Note: The air-tightness graphs for the steel sheet regulating dampers are based on a differential pressure of 250 Pa through the damper.

Fresh air intake grilles 200 series Description Fresh air intake or extract grille, model 210-TA. Constructed in extruded aluminium. The design and shape of the blades make it completely sight-proof. As it is designed mainly for outdoor installation, it also prevents rainwater, snow, etc. from entering. Includes anti-bird meshes (12.5 mm standard mesh). On request with anti-insect mesh (1.6 mm mesh) or without protection and with or without filter. Suitable for commercial and industrial buildings, air-conditioning units, transformer housings, plant rooms, garages, outdoor coverings, etc. The...

Fresh air intake grilles 200 series Installation Grilles are supplied with fixing plates in the frame to be built in to the wall. If specified on order, grilles can be supplied either with holes drilled in the frame to allow fixing via screws or with a mounting frame. WITH FIXING PLATES WITH MOUNTING FRAME WITHOUT FRAME WITH MOTOR-DRIVEN AOBD CONTROL DAMPER 210-TA-AOBD-MT

Table for forced ventilation based on a corrected face velocity of 2.5 m/s, which corresponds to a sound power level of 48 dB(A) when functioning as an extract grille and 52 dB(A) as an fresh air intake grille, considering an area of 1 m2 (use table 3, Sound Power Level Correction Table, to calculate other areas). Table 1. Quick selection tables The free/frontal area of an air intake grille with dimensions LxH can be calculated as follows: The frontal area would be Af(m2)=(L-0.014)*(H-0.109). The relation of this area to LxH will be the free area percentage. Example: For dimensions 1000x800:...

Technical data 210-TA Pressure loss graphs The pressure loss is obtained directly from the following graphs. CORRECTED FACE VELOCITY in m/s CORRECTED FACE VELOCITY in m/s A.- GRILLE B.- GRILLE WITH ANTI-BIRD MESH C.- GRILLE WITH ANTI-INSECT MESH

Technical data 210-TA Sound power level graphs 210TA SOUND POWER LEVEL Extract Intake Correction values according to area. With: ݑɰݑ ɰݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑаݑ аݑӰݑӰݑӰݑӰݑӰݑӰݑӰݑ ( ӰݑڰݑڢD ݑ0ݑ) LWA1: Sound power level expressed in dB(A) for A=1 0ݑڰݑ2 . For different ڃreas: LWA:= LWA1 + K

Technical data 210-TA Selection example Next, a selection example is shown in order to pre-select the specific dimensions of an air intake or extract grille. The starting point is the design flow rate, for example, 3000 m3/h. First of all, the frontal area required to give a face velocity of around 2.5 m/s is calculated, i.e. (3000m3/h)/(3600s/h) = 2.5 m/s*Afrontal(m2) ; Afrontal(m2)=0.333 The dimensions are found using the formula in the “Quick selection table” section (L-0,014)x(H-0,109), and according to the desired aspect ratio. In this example we will use 2:1. The frontal length will therefore...

Example: 210-TA-SB-MI-1200x500-RAL9010. Air intake/extract grille with no frame, complete with 1200x500 insect mesh, painted in RAL colour 9010.

Circular weather louvres TAC-200 Description Weather louvre, model TAC-200. Painted in white RAL 9010. Special finishes available upon request. Circular weather louvre, constructed in extruded aluminium. Its design and blade shape avoid vision through the louvre. It avoids penetration of rain water, snow, etc., since it has been principally designed for outdoor installation. Its circular shape makes it ideal for those installations where, for architectural reasons, conventional rectangular louvres are not acceptable. The louvre frame is provided with holes for fixing by means of screws. Weather...

General dimensions In the following general dimensions for the TAC-200 louvres are given in two tables : from Ø315 to Ø710 with insectscreen and from Ø800 to Ø1250 with birdscreen. Accessories In standard finish the TAC louvres incorporate an insectscreen from size 315 to 710 and a birdscreen from 800 to 1250. ANTI-BIRD MESH ANTI-INSECT MESH

Series 100-200Graphs for pressure loss of TAC-200 In the following graphs the pressure loss is given for the TAC-200 louvres. For a given air flow rate (m3/h) the pressure loss (in Pa) can be obtained. In all graphs the effect of the insectscreen or birdscreen (according to louvre size) are already incorporated.