EDRFB - EDRFQB Fixed geometry diffusers
Description
Fixed geometry diffusers with high induction.
Characteristics
Material: steel plate with sharp edges.
Finish: painted RAL 9010.
Installation: secured with screws to the diffuser neck.
Use
Models
- EDRFB: high induction diffusers with fixed deflector blades on rounded circular panel.
- EDRFQB: high induction diffusers with fixed deflector blades on rounded square panel or on 595x595 panel suitable for installation on 600x600 square false ceilings.
Accessories
- EPZ-DC - Galvanised Plenum Box;
- EPI-DC - Insulated Plenum Box;
- EPZ-DCS - Galvanised Plenum Box with Damper;
- EPI-DCS - Insulated Plenum Box with Damper;
- EDRF-EQ - Fitting with Equaliser.
EDRFB - Dimensions
All dimensions are expressed in mm.
Technical Drawing Diameter ØD ØL1 ØC G1 P1 
125 122 225 28 55 82 160 157 250 50 55 82 200 197 300 50 55 82 250 247 350 65 55 85 315 312 415 87 55 85
EDRFB-Q - Dimensions
All EDRFQ diffuser sizes are available with an L2 × L2 dimension of 595 × 595 mm, making them suitable for installation in modular suspended ceilings.
Technical Drawing Diameter ØD1 L2xL2 ØC1 G2 P2 
125 122 225x225 28 55 82 160 157 250x250 50 55 82 200 197 300x300 50 55 82 250 247 350x350 65 55 85 315 312 415x415 87 55 85
Operating Data
- Vk: effective speed (m/s).
- m³/h: flow rate.
- Pa: pressure drops in Pascal.
- L(m): air throw in metres calculated on ceiling installation, terminal velocity 0.25 m/s.
- dB(A): noise level (without equaliser).
| Models | Effective Section | Vk m/s | 1,0 | 1,2 | 1,4 | 1,6 | 1,8 | 2,0 | 2,4 | 2,8 | 3,2 | 3,6 | 4,0 | Recommended (m3/h) | |
| m² | MIN | MAX | |||||||||||||
| 125 | 0,0091 | m3/h | 32 | 39 | 45 | 52 | 58 | 65 | 78 | 91 | 104 | 117 | 130 | 40 | 90 |
| Pa (with equalizer) | 5 | 7 | 9 | 12 | 15 | 19 | 27 | 37 | 48 | 61 | 75 | ||||
| Pa (without equalizer) | 7 | 10 | 13 | 18 | 22 | 28 | 40 | 55 | 72 | 92 | 114 | ||||
| L(m) | 1,5 | 1,6 | 1,7 | 1,8 | 1,9 | 2 | 2,3 | 2,4 | 2,6 | 2,7 | 2,9 | ||||
| dB(A) | <20 | <20 | 23 | 28 | 31 | 34 | 40 | 45 | 49 | 52 | 75 | ||||
| 160 | 0,0146 | m3/h | 54 | 65 | 76 | 86 | 97 | 108 | 130 | 151 | 173 | 194 | 216 | 50 | 120 |
| Pa (with equalizer) | 5 | 7 | 10 | 13 | 16 | 20 | 29 | 40 | 52 | 65 | 81 | ||||
| Pa (without equalizer) | 7 | 10 | 14 | 19 | 23 | 29 | 42 | 59 | 77 | 97 | 120 | ||||
| L(m) | 1,6 | 1,8 | 1,9 | 2 | 2,1 | 2,2 | 2,5 | 2,7 | 2,8 | 3 | 3,1 | ||||
| dB(A) | <20 | 25 | 30 | 34 | 38 | 42 | 48 | 53 | 57 | 64 | 66 | ||||
| 200 | 0,0225 | m3/h | 79 | 95 | 111 | 127 | 143 | 158 | 190 | 222 | 253 | 285 | 317 | 90 | 210 |
| Pa (with equalizer) | 5 | 6 | 9 | 11 | 15 | 17 | 25 | 35 | 45 | 57 | 71 | ||||
| Pa (without equalizer) | 7 | 9 | 13 | 16 | 21 | 25 | 37 | 51 | 66 | 84 | 105 | ||||
| L(m) | 1,6 | 1,8 | 1,9 | 2 | 2,2 | 2,3 | 2,5 | 2,7 | 2,8 | 3 | 3,2 | ||||
| dB(A) | <20 | 22 | 26 | 30 | 34 | 37 | 42 | 47 | 51 | 54 | 57 | ||||
| 250 | 0,0345 | m3/h | 122 | 147 | 171 | 196 | 220 | 245 | 294 | 343 | 392 | 441 | 490 | 130 | 310 |
| Pa (with equalizer) | 5 | 5 | 6 | 8 | 10 | 13 | 19 | 25 | 33 | 42 | 52 | ||||
| Pa (without equalizer) | 7 | 8 | 10 | 13 | 16 | 21 | 30 | 40 | 53 | 68 | 85 | ||||
| L(m) | 1,9 | 2,1 | 2,3 | 2,5 | 2,6 | 2,7 | 3 | 3,2 | 3,4 | 3,6 | 3,8 | ||||
| dB(A) | <20 | 23 | 27 | 31 | 35 | 38 | 43 | 48 | 51 | 55 | 58 | ||||
| 315 | 0,0536 | m3/h | 194 | 233 | 272 | 311 | 350 | 389 | 467 | 544 | 622 | 700 | 778 | 250 | 520 |
| Pa (with equalizer) | 5 | 5 | 7 | 9 | 11 | 14 | 21 | 28 | 37 | 47 | 58 | ||||
| Pa (without equalizer) | 7 | 8 | 11 | 14 | 17 | 22 | 32 | 43 | 57 | 73 | 90 | ||||
| L(m) | 2 | 2,3 | 2,4 | 2,6 | 2,7 | 2,9 | 3,1 | 3,3 | 3,6 | 3,7 | 3,9 | ||||
| dB(A) | <20 | <20 | 22 | 27 | 31 | 35 | 41 | 47 | 51 | 55 | 59 | ||||
EDRF-EQ - Equalizer
Photo Description 
Circular galvanized steel connection spigot complete with a micro-perforated balancing damper for airflow regulation and uniform distribution. Its profiled construction and side mounting brackets ensure quick, secure, and stable attachment to the diffuser.
EPZ-DC - EPI-DC - Plenum Box
All measurements are expressed in mm.
Technical Drawing DiameterDiameter L H P Ø A2 Diffuser Ø B2 Duct - Flexible or Rigid C2 D2 
125 200 200 200 127 125 70 100 160 250 250 250 162 155 70 100 200 300 300 300 202 195 70 100 250 350 350 350 252 245 70 100 315 400 400 400 317 310 70 100
Price List
Models EDRFB EDRFQB - Diffuser on square panel EDRFQB - Diffuser on square panel 595x595 mm EDRF-EQ - Fitting with Equaliser EPZ-DC - Galvanised Plenum Box EPI-DC - Insulated Plenum Box EPZ-DCS - Plenum Box with Damper EPI-DCS - Insulated Plenum Box with Damper Eur Eur Eur Eur Eur Eur Eur Eur 125 45,74 49,91 117,00 49,85 59,03 87,29 78,46 99,87 160 55,64 63,28 130,40 51,88 65,67 88,68 86,96 110,78 200 72,48 82,70 149,76 67,32 74,73 100,47 96,40 122,97 250 87,36 100,11 167,17 81,92 99,39 128,93 121,62 152,03 315 108,31 124,00 191,03 94,41 111,86 145,19 140,60 175,05
