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  • Ø80 mm 19.84 € 10.91 € (-44%)
  • Ø100 mm 23.55 € 12.95 € (-45%)
  • Ø125 mm 31.65 € 17.41 € (-44%)
  • Ø160 mm 42.92 € 23.61 € (-44%)
  • Ø200 mm 57.39 € 31.57 € (-44%)
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Accoustic air valves Silent DPN

  • for air supply or exhaust
  • special construction of the valve ensures low level of noise
  • damper adjustable air flow
  • powder coated in RAL9016 colour

Brand: ESEM
Code
ØD
ØA
Hmax
DPN080
80
115
45
DPN100 100 137 45
DPN125 125 164 45
DPN160 160 212 45
DPN200 200 248 45

 

 

Parameters

Volumetric flow q (l/s or m3/h ), total pressure loss Pt (Pa), and acoustic pressure level LA (dB(A)), can be read from the figure below.

 

Acoustic pressure level, LA (dB(A))

  

Code
Frequency, Hz
125 250 500 1000 2000 4000 8000
DPN080 6 3 2 1 -4 -16 -20
DPN100 4 3 2 0 -7 -15 -30
DPN125 2 7 3 -2 -10 -20 -32
DPN160 5 7 3 -2 -10 -19 -32
DPN200 8 6 4 -3 -10 -19 -32
tolerance 3 2 2 2 2 2 3

 

Sound attenuation, dB

  

Code
Frequency, Hz
63 125 250 500 1000 2000 4000 8000
DPN080 22 19 14 11 2 3 7 8
DPN100 22 16 11 8 6 6 3 6
DPN125 20 15 9 6 4 3 3 5
DPN160 18 13 8 5 4 4 5 6
DPN200 17 11 7 6 6 5 6 6
tolerance 6 3 2 2 2 2 2 3

 

Pressure loses and accoustic pressure figure