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SR series (rectangular)

SR series (rectangular)

The plate silencer is applied for noise absorption produced during the ventilating equipment operation and spread along the ducting systems.

Products in this series (9)

Series   Flange designation (WxH) [mm]
SR
  400х200; 500х250; 500х300; 600х300; 600х350; 700х400; 800х500; 900х500; 1000х500
Applications

The plate silencer is applied for noise absorption produced during the ventilating equipment operation and spread along the ducting systems. Suitable for installation into rectangular ducts. The silencer reduces the noise level in the air duct significantly (refer the diagram «Noise level reduction»). The silencer is applied jointly with the sound-insulated fan in case of high noise level requirements not only to the air duct but to the equipment in general.

Design

Silencer casing and plate shells are made of galvanized steel. The plates are filled with flameproof sound insulating material with protecting covering to prevent the fiber blowing-out.

Mounting

The mounting is performed by means of flange connection with respect to air flow direction (indicated with an arror on the casing). The straight portion of at least 1 m long before the silencer is recommended to provide the peak efficiency. Installation in series is preferable to attain the better effect.

    Noise level reduction, dB (Octave-frequency band [Hz])
    63 Hz   125 Hz   250 Hz   500 Hz   1000 Hz   2000 Hz   4000 Hz   8000 Hz
SR 400х200   3   7   10   23   27   30   25   22
SR 500х250   3   6   11   22   26   25   27   22
SR 500х300   3   6   10   23   24   25   23   18
SR 600х300   3   6   10   21   24   30   24   17
SR 600х350   3   5   11   22   25   29   24   21
SR 700х400   4   7   10   15   22   19   21   18
SR 800х500   5   6   11   17   21   20   22   20
SR 900х500   3   6   10   16   20   20   21   15
SR 1000х500   4   6   11   16   21   21   23   17

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