Return air Grilles - RA |
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GENERAL SPECIFICATIONS |
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This grille my be mounted vertically or horizontally. |
TYPE RA | (45deg. Deflection): Return Air Grille manufactured of extruded type anodising grade aluminium with fixed curved blade profile giving low see through characteristics. |
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This grille may be mounted vertically or horizontally. | |||||
Optional Accessories | OBD | = | Opposed Blade Damper | ||
PC | = | Punched counter sunk holes | |||
CF | = | Concealed Fixing | |||
FS | = | Rear Fixing Straps | |||
Frame Options | 30mm | Standard | |||
20mm |
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50mm | |||||
Finish Options | NA | = | Natural Anodised | ||
EPC | = | Epoxy Powder Coating | |||
Blade Spacings | 13mm | ||||
21mm | Standard | ||||
26mm |
Ordering Procedure: Example | |||||||
REF | QTY | SIZE (LxH) | TYPE | ACCESS | FRAME | FINISH | SPECIAL INSTRUCTIONS |
1 | 15 | 1195 x 595 | RA | - | 30 | NA | "OS" |
Note:
(1) Dimensions given are for over flange size
(2) If 13mm, 19mm, 26mm Blade Spacing required, enter under SPECIAL INSTRUCTIONS
EXAMPLE |
0,4m3/s AT 4M/S |
USE 350mm x 350mm |
PRESSURE DROP IS 10N/m2 |
GRILLE + OBD PRESSURE DROP |
IS 15N/m2 BY PIVOTING |
ON LINE A-A ALTERNATIVE |
DIMENSIONS ARE OBTAINED. |