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BTH-B2E • Rectangular sound attenuators express

  • Rectangular
  • Galvanised steel
  • Mineral wool + resonance plates
  • Delivery within a week

Standard rectangular sound attenuators with a fixed length of 1000 mm.

Delivery possible within a week.

Application

  • BTH-B2E silencers are designed to reduce sound generated from fans and airconditioning devices with maximum sound attenuation in the 250Hz octave band. The sound attenuation performance of the BTH-B2 silencers with build-in B2 attenuation splitters are superior to classical absorption attenuators on frequencies of 63 to 500 Hz with equal length and width of splitters and equal splitter pattern pitch. In other frequency bands the BTH-B2 silencers are also well adapted to ventilation and air-conditioning system acoustic requirements

  • Silencers with Splitter thickness d=100mm is suitable for smaller air flow rates as well as in the case where high degree attenuation is required in the high frequency range.
  • Standard version silencers with cellulose foil or galvanized steel sheet plates are suitable for velocities up to 20m/s between the splitters

Composition

  • The attenuation housing is made of galvanized sheet steel which complies with air tightness class C (ATC3)
  • Splitters with frames of galvanized steel and fillings with highly efficient absorption material are build into the housing
  • Filling exposed surface is protected with cellulose foil
  • They are designed to be incombustible class A1, Euroclass DIN EN 13501-1
  • B2 splitters are partly covered with galvanized steel strips
  • Strips of galvanized sheet steel or cellulose foil run along the splitter length L
  • The B2 splitter height en length are not interchangeable. The splitter L dimension shall always run in the direction of the propagation of sound

Order example

BTH-B2E BXHXL / d= 100 / n= ...

Explanation

BTH-B2E : Silencer type with B2 Splitters with cellulose foil and sheet steel plates

BXHXL : Width X Height X Length

d=100 : Splitter thickness of 100mm

n= ... : Number of splitters


Articles

Article selection assistant
B [mm]
H [mm]
L [mm]
d [mm]
n
s [mm]
Article number B [mm] H [mm] L [mm] d [mm] n s [mm] E-shop
C06143025A012 300 250 1000 100 2 50
C06143030A012 300 300 1000 100 2 50
C06143035A012 300 350 1000 100 2 50
C06143040A012 300 400 1000 100 2 50
C06143050A012 300 500 1000 100 2 50
C06143060A012 300 600 1000 100 2 50
C06143080A012 300 800 1000 100 2 50
C06143525A012 350 250 1000 100 2 75
C06143530A012 350 300 1000 100 2 75
C06143535A012 350 350 1000 100 2 75
C06143540A012 350 400 1000 100 2 75
C06143550A012 350 500 1000 100 2 75
C06143560A012 350 600 1000 100 2 75
C06143580A012 350 800 1000 100 2 75
C06144025A012 400 250 1000 100 2 100
C06144030A012 400 300 1000 100 2 100
C06144035A012 400 350 1000 100 2 100
C06144040A012 400 400 1000 100 2 100
C06144050A012 400 500 1000 100 2 100
C06144060A012 400 600 1000 100 2 100
C06144080A012 400 800 1000 100 2 100
C06144525A013 450 250 1000 100 3 50
C06144530A013 450 300 1000 100 3 50
C06144535A013 450 350 1000 100 3 50
C06144540A013 450 400 1000 100 3 50
C06144550A013 450 500 1000 100 3 50
C06144560A013 450 600 1000 100 3 50
C06144580A013 450 800 1000 100 3 50
C06145025A013 500 250 1000 100 3 66.70
C06145030A013 500 300 1000 100 3 66.70
C06145035A013 500 350 1000 100 3 66.70
C06145040A013 500 400 1000 100 3 66.70
C06145050A013 500 500 1000 100 3 66.70
C06145060A013 500 600 1000 100 3 66.70
C06145080A013 500 800 1000 100 3 66.70
C06145525A013 550 250 1000 100 3 83.30
C06145530A013 550 300 1000 100 3 83.30
C06145535A013 550 350 1000 100 3 83.30
C06145540A013 550 400 1000 100 3 83.30
C06145550A013 550 500 1000 100 3 83.30
C06145560A013 550 600 1000 100 3 83.30
C06145580A013 550 800 1000 100 3 83.30
C06146025A013 600 250 1000 100 3 100
C06146025A014 600 250 1000 100 4 50
C06146030A013 600 300 1000 100 3 100
C06146030A014 600 300 1000 100 4 50
C06146035A013 600 350 1000 100 3 100
C06146035A014 600 350 1000 100 4 50
C06146040A013 600 400 1000 100 3 100
C06146040A014 600 400 1000 100 4 50
C06146050A013 600 500 1000 100 3 100
C06146050A014 600 500 1000 100 4 50
C06146060A013 600 600 1000 100 3 100
C06146060A014 600 600 1000 100 4 50
C06146080A013 600 800 1000 100 3 100
C06146080A014 600 800 1000 100 4 50
C06146525A014 650 250 1000 100 4 62.50
C06146530A014 650 300 1000 100 4 62.50
C06146535A014 650 350 1000 100 4 62.50
C06146540A014 650 400 1000 100 4 62.50
C06146550A014 650 500 1000 100 4 62.50
C06146560A014 650 600 1000 100 4 62.50
C06146580A014 650 800 1000 100 4 62.50
C06147025A014 700 250 1000 100 4 75
C06147025A015 700 250 1000 100 5 40
C06147030A014 700 300 1000 100 4 75
C06147030A015 700 300 1000 100 5 40
C06147035A014 700 350 1000 100 4 75
C06147035A015 700 350 1000 100 5 40
C06147040A014 700 400 1000 100 4 75
C06147040A015 700 400 1000 100 5 40
C06147050A014 700 500 1000 100 4 75
C06147050A015 700 500 1000 100 5 40
C06147060A014 700 600 1000 100 4 75
C06147060A015 700 600 1000 100 5 40
C06147080A014 700 800 1000 100 4 75
C06147080A015 700 800 1000 100 5 40
C06148025A014 800 250 1000 100 4 100
C06148025A015 800 250 1000 100 5 60
C06148030A014 800 300 1000 100 4 100
C06148030A015 800 300 1000 100 5 60
C06148035A014 800 350 1000 100 4 100
C06148035A015 800 350 1000 100 5 60
C06148040A014 800 400 1000 100 4 100
C06148040A015 800 400 1000 100 5 60
C06148050A014 800 500 1000 100 4 100
C06148050A015 800 500 1000 100 5 60
C06148060A014 800 600 1000 100 4 100
C06148060A015 800 600 1000 100 5 60
C06148080A014 800 800 1000 100 4 100
C06148080A015 800 800 1000 100 5 60
C06149025A015 900 250 1000 100 5 80
C06149025A016 900 250 1000 100 6 50
C06149030A015 900 300 1000 100 5 80
C06149030A016 900 300 1000 100 6 50
C06149035A015 900 350 1000 100 5 80
C06149035A016 900 350 1000 100 6 50
C06149040A015 900 400 1000 100 5 80
C06149040A016 900 400 1000 100 6 50
C06149050A015 900 500 1000 100 5 80
C06149050A016 900 500 1000 100 6 50
C06149060A015 900 600 1000 100 5 80
C06149060A016 900 600 1000 100 6 50
C06149080A015 900 800 1000 100 5 80
C06149080A016 900 800 1000 100 6 50
C0614A025A015 1000 250 1000 100 5 100
C0614A025A016 1000 250 1000 100 6 66.70
C0614A030A015 1000 300 1000 100 5 100
C0614A030A016 1000 300 1000 100 6 66.70
C0614A035A015 1000 350 1000 100 5 100
C0614A035A016 1000 350 1000 100 6 66.70
C0614A040A015 1000 400 1000 100 5 100
C0614A040A016 1000 400 1000 100 6 66.70
C0614A050A015 1000 500 1000 100 5 100
C0614A050A016 1000 500 1000 100 6 66.70
C0614A060A015 1000 600 1000 100 5 100
C0614A060A016 1000 600 1000 100 6 66.70
C0614A080A015 1000 800 1000 100 5 100
C0614A080A016 1000 800 1000 100 6 66.70
To be delivered within 1 week subject to sales

Attenuation values BTH-B2 Splitter thickness d=100mm

L=1000 mm - d=100
s [mm][Hz]
631252505001000200040008000
40816242825231815
50712202624211613
60610182423191411
62.5610182423191411
66.769172423191411
7558152323191410
804815222319139
83.34815222319139
87.54714222319139
903713212319138
1003612212319138

Specifications

  • L = Length in mm
  • s = Distance between splitters in mm
  • Hz = Frequency band in Hertz
  • Sound attenuation capacities D given in dB

Pressure losses BTH-B2 Splitter thickness d=100mm

L=1000 mm - d=100
s [mm]v (m/s)
2468101214161820
40281832507297127161199
50271527436184109138171
6026142438547496122150
62.516132437547396121150
66.716132336517091115142
7515122132466382104129
8015112031446079100123
83.315112031446079100123
87.51511193043587696118
901510182841567392114
1001410172638526886106

Specifications

  • L = Length in mm
  • s = Distance between splitters in mm
  • Vs = Air velocity between splitters in m/s
  • Pressure drop vallues Dp are given in Pa

Specifications

  • B X H X L = Width X Height X Length in mm
  • d= Splitter thickness 100 in mm
  • n = Number of splitters
  • s = Distance between splitters in mm
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