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A04  •  Round ceiling diffusersDownloads

PRN

Round ceiling diffusers with fixed diffusion rings

Application

  • Used for air supply and exhaust in ventilation and air conditioning systems.

Material

  • Aluminium

Colour

  • White, RAL 9010

Composition

  • Fixed diffusion rings

Mounting

  • Fixing directly on the collar
  • Fixing with central screw

Accessories

  • Opposite blade volume control damper type DR
  • Plenum box type RER-L
  • Plenum box type RER-L ISO
  • Crossbar for ceiling mounting type FHN
  • Crossbar for mounting in circular duct type FGN

Text for tender

  • The circular ceiling diffusers have fixed diffusion blades. They are made of aluminium with white powder coating finish RAL 9010 and supplied with a volume control damper in the plenumbox.
  • ATC Type PRN+RER-L

Order example

  • PRN, 200 + RER-L

 

Explanation

PRN = Diffuser type

200 = Diffuser size (Ø diffuser neck connection)

 

Accessories

RER-L = Plenumbox

Articles

Article numberTypeQv (Lw≤35 dB(A)) [m³/h]E-shop
 
A040411160000PRN 160250E-shop
 
A040411200000PRN 200350E-shop
 
A040411250000PRN 250450E-shop
 
A040411315000PRN 315650E-shop
 
A040411355000PRN 355750E-shop
 
A040411400000PRN 400800E-shop
=> Stock product Zaventem
=> Stock product local warehouses

Dimensions

PRN

ØC [mm]

ØB [mm]

ØD [mm]

160

247

213

159

200

287

264

199

250

337

315

249

315

402

366

314

355

442

417

354

400

487

462

399

Quick selection

 Type160200250315355400
QvAk (m2)0.00920.01380.02060.03120.03860.0477
150Veff4.53    
 Lth1.41.1    
 Ps84    
 Lw<20<20    
200Veff642.71.8  
 Lth1.81.51.21  
 Ps14631  
 Lw25<20<20<20  
250Veff7.553.42.21.8 
 Lth2.31.91.51.21.1 
 Ps2210421 
 Lw3222<20<20<20 
300Veff9.1642.72.21.7
 Lth2.82.31.81.51.31.2
 Ps32146321
 Lw3929<20<20<20<20
400Veff 8.15.43.62.92.3
 Lth 32.521.81.6
 Ps 2511532
 Lw 3929<20<20<20
500Veff 10.16.74.53.62.9
 Lth 3.83.12.52.22
 Ps 4018853
 Lw 47372722<20
600Veff  8.15.34.33.5
 Lth  3.732.72.4
 Ps  261175
 Lw  43332823
800Veff   7.15.84.7
 Lth   43.63.2
 Ps   20138
 Lw   433833
1000Veff    7.25.8
 Lth    4.54
 Ps    2013
 Lw    4640

Symbols and specifications

  • Values at ceiling height of 3 m
  • Temperature difference Dt = 0K
  • Veff = Effective velocity in m/s
  • Lth 0.25 = horizontal throw in m at vt = 0.25 m/s
  • Ps = Static pressure loss in Pa
  • Lw = Acoustic power in dB(A)
  • Qv = Air Volume in m³/h
  • 160 to 400 = diffuser size
A04.041.1  •  Subject to technical modification
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