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Swirl Diffusers - 17 Pages
Construction • Dimensions
The face section of the diffuser or side entry plenum box
is demountable, held in position by a central fixing bolt.
The screw head is covered by a decorative cap.
The plenum box can be supplied with a volume control
damper or lip seal.
For type RFD-...-D-N (which is only available with discharge
nozzle), the plenum box and diffuser face form an integral
unit.
For simple adjustment of the volume flow, on request the
plenum box can be provided with a test connection for
measurement of reference pressures and a volume control
damper, operated by sheathed cables. The characteristic
curve of pressure reading versus volume flow rate for each
size of plenum box is supplied (except for RFD-R-D-N).
Size | 0C 0D ^ H2 H3 H4 H5 H6 f g K K, K2 Q1 Q2 R, R2 AKCode') |
125 | 123.5 98 259 284 195 178 204 152 26 159 216 264 283 198 198 158 200 AK 028 |
160 | 158.5 123 284 309 220 190 216 177 26 155 266 293 335 198 248 197 250 AK 029 |
200 | 198.5 158 314 339 250 202 228 212 26 195 290 373 392 248 248 241 300 AK 030 |
250 | 248.5 198 359 384 295 227 253 262 31 195 476 416 435 298 298 295 350 AK 031 |
315 | 313.5 248 409 444 345 252 289 312 31 230 567 476 496 398 398 364 450 AK 032 |
400 | 398.5 313 474 509 410 285 321 377 31 305 615 652 728 498 498 450 580 AK 033 |
1) Not valid for RFD-R-D-N
RFD-Q-A-M/RFD-R-A-M
RFD-Q-D-A-M/RFD-R-D-A-M
Measurement of Reference Pressures
© Plastic tube
© Test nipple
© Plenum box
© Diffuser face
© Inclined tube manometer
© Green sheathed cable
- damper closed -
© White sheathed cable
- damper open -
© Code plenum box
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2/4/EN/8Swirl DiffusersType RFDrecommended for use in rooms withceiling heights of approx. 2.60 . . . 4.00 mTROX GmbHHeinrich-Trox-PlatzD-47504 Neukirchen-VluynTelephone... -
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Contents • Description Description_ 2 Construction • Dimensions_ 3 Installation • Fixing_ 5 Materials_ 5 Nomenclature_... -
P. 3
Dependant on requirements of maximum volumetric flow, noise level and installation situation, swirl diffusers are available with or without discharge... -
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Installation • Fixing Because of their excellent performance, type RFD swirl diffusers can be installed flush with a continuous ceiling or freely... -
P. 6
Nomenclature · Quick Selection · Spectral Data·V·VA, BXH1vH1Nomenclaturein l/s:in m3/h:in m:in m:in m:in m/s:Lin m:vLͬ tZin m/s:in... -
P. 7
Example Data given: Type RFD-R-D-US/125 Volume flow per diffuser V = 24 l/s Required: Octave band sound power level of regenerated noise... -
P. 8
Acoustic Data Correction to Diagram 3: Damper angleBlade angle0°45°90°Ap,x 1x 1.2x2.4 + 1+ 3 + 1+ 3 Correction... -
P. 9
Acoustic Data Correction to Diagram 7: Damper angle Correction to Diagram 9: Damper angle Blade angle 0° ... -
P. 10
