ESRS Rectangular silencers with sound-absorbing splitters

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Description

Rectangular silencer with sound-absorbing splitters to control noise in air conditioning, heating and ventilation systems. The splitters, with an aerodynamic profile at the inlet and outlet, allow low pressure drops with excellent attenuation performances.

Characteristics

External structure: 0.8 m thick galvanised steel frame, 30 mm flange for lengths up to 6 m, 40 mm flange for longer lengths.

Splitters: sound-absorbing splitters with 0.8 m thick galvanised steel frame, 50 kg/m³ density rock wool with anti-flaking surface and and micro-extended mesh.

On request

AISI 304 or AISI 316 stainless steel version.
Hygienic version with VDI 60/22 certified insulation.

Operating data and Price list

S: splitter thickness 200 mm
P: air passages 100 mm

Pa: pressure drop in Pascal for length 1200 mm.
all dimensions are expressed in mm

dimension
BxH 		frontal surface free surface no. of
splitters 		lenght (mm)
front speed(m/s)
2,5 3,5 4
flow rate m3/h 600 900 1200 1500
mm mq mq 33 Pa 63 Pa 78 Pa euro euro euro euro
300x300 0,09 0,03 1 810 1135 1300 238,70 305,54 382,67 459,49
300x450 0,135 0,05 1 1215 1705 1945 278,84 371,14 447,97 519,31
300x600 0,18 0,06 1 1620 2270 2595 329,31 421,29 497,78 606,55
600x300 0,18 0,06 2 1620 2270 2595 374,38 483,18 576,55 712,13
600x450 0,27 0,09 2 2430 3405 3890 431,25 547,12 684,01 842,31
600x600 0,36 0,12 2 3240 4540 5185 472,66 632,08 792,93 979,29
600x900 0,54 0,18 2 4860 6805 7780 605,40 815,19 1028,50 1261,44
900x300 0,27 0,09 3 2430 3405 3890 494,61 635,08 796,61 989,49
900x450 0,405 0,14 3 3645 5105 5835 557,89 746,81 946,04 1176,23
900x600 0,54 0,18 3 4860 6805 7780 642,21 868,85 1098,99 1358,77
900x900 0,81 0,27 3 7290 10210 11665 828,19 1122,21 1412,93 1726,80
900x1050 0,945 0,32 3 8505 11910 13610 937,25 1261,44 1577,96 1924,54
900x1200 1,08 0,36 3 9720 13610 15555 1030,03 1384,64 1729,93 2107,73
1200x450 0,54 0,18 4 4860 6805 7780 705,57 956,83 1211,59 1505,97
1200x600 0,72 0,24 4 6480 9075 10370 813,21 1109,13 1402,87 1730,87
1200x750 0,9 0,3 4 8100 11340 12960 934,67 1269,41 1596,75 1960,92
1200x900 1,08 0,36 4 9720 13610 15555 1054,48 1788,08 2192,69 2192,69
1200x1050 1,26 0,42 4 11340 15680 18145 1191,70 1596,50 1999,12 2442,10
1200x1200 1,44 0,48 4 12960 18145 20740 1310,05 1749,92 2190,02 2679,43
1200x1500 1,8 0,6 4 16200 22680 25920 1559,98 2076,46 2601,36 3164,54
1500x600 0,9 0,3 5 8100 11340 12960 989,76 1349,11 1701,10 2099,85
1500x750 1,125 0,38 5 10125 14175 16200 1135,78 1538,17 1932,56 2378,18
1500x900 1,35 0,45 5 12150 17010 19440 1280,48 1722,85 2165,76 2662,54
1500x1200 1,8 0,6 5 16200 22680 25920 1584,42 2117,73 2659,49 3249,50
1500x1500 2,25 0,75 5 20250 28350 32400 1885,25 2516,61 3151,58 3835,26
1500x1800 2,7 0,9 5 24300 34020 38880 2208,44 2937,38 3664,07 4438,47
1800x600 1,08 0,36 6 9720 13610 15555 1164,67 1585,37 1996,75 2470,57
1800x750 1,35 0,45 6 12150 17010 19440 1335,57 1802,56 2270,11 2801,49
1800x900 1,62 0,54 6 14580 20415 23330 1502,74 2023,16 2545,12 3133,71
1800x1200 2,16 0,72 6 19440 27220 31105 1856,22 2487,24 3124,96 3819,45
1800x1500 2,7 0,9 6 24300 34020 38880 2212,29 2958,06 3701,60 4502,80
1800x1800 3,24 1,08 6 29160 40825 46660 2594,74 3451,40 4301,63 5212,20
1800x2100 3,78 1,26 6 34020 47630 54435 3055,42 4018,20 4975,04 6008,87
2100x900 1,89 0,63 7 17010 23815 27220 1722,55 2320,08 2928,48 3603,56
2100x1200 2,52 0,84 7 22680 31755 36290 2131,27 2860,73 3590,54 4388,49
2100x1500 3,15 1,05 7 28350 39690 45360 2540,45 3398,22 4250,89 5171,46
2100x1800 3,78 1,26 7 34020 47630 54435 2985,03 3964,63 4938,33 5998,98

Sound attenuation

silencer length octave bands (Hz)
mm 63 125 250 500 1 K 2 K 4 K 8 K
600 3 4 9 16 20 21 13 7
900 4 6 14 25 31 34 20 11
1200 6 9 19 34 43 46 27 15
1500 7 11 24 43 >50 >50 32 18
1800 9 14 29 >50 >50 >50 36 20
2100 10 16 34 >50 >50 >50 39 22

Pressure drops and noise generated

 
Front section speed Pressure drops Noise generated
V (m/s) Dpt Pa Lwa dB(A)
1 5 <20
2 21 32
3 47 44
4 78 52
5 125 57

Weights (Kg)

dimensions
BxH 		length (mm)
600 900 1200 1500
mm Weight (Kg) Weight (Kg) Weight (Kg) Weight (Kg)
300x300 12 18 24 29
300x450 16 23 29 36
300x600 19 27 36 44
600x300 21 31 40 50
600x450 26 38 49 61
600x600 32 45 59 73
600x900 42 60 78 96
900x300 30 43 57 70
900x450 37 53 69 86
900x600 44 63 82 101
900x900 59 83 107 132
900x1050 65 93 120 147
900x1200 73 102 132 162
1200x450 48 69 89 110
1200x600 57 81 105 129
1200x750 66 93 212 149
1200x900 75 106 117 168
1200x1050 84 118 152 187
1200x1200 93 130 168 206
1200x1500 110 155 200 144
1500x600 69 99 128 158
1500x750 80 114 147 181
1500x900 91 129 166 204
1500x1200 112 158 204 249
1500x1500 134 188 242 195
1500x1800 155 217 279 341
1800x600 82 117 151 186
1800x750 95 134 173 213
1800x900 107 151 195 240
1800x1200 132 186 240 293
1800x1500 158 221 284 347
1800x1800 183 255 328 400
1800x2100 208 290 372 453
2100x900 124 174 225 276
2100x1200 152 214 275 337
2100x1500 181 253 326 398
2100x1800 210 293 376 459

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2025-02-20 Starting from 03/03/25, take advantage of the promotion: ESRS prices list will be reduced by up to 25%.

General catalogue

AIR DIFFUSION FIRE SAFETY MVHR - MECHANICAL VENTILATION HEAT RECOVERY SANITIZATION VENTILATION FLEXIBLE DUCTS SPIRO DUCTS AND FITTINGS FILTRATION INSULATION TAPES AND GASKETS REGULATORS ACCESSORIES AND PARTS
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