SRV-1250-1D

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The silencer is used for attenuation of the operation noise generated by ventilation equipment and spreaded in the air ducts.

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Description

PURPOSE	DESIGN
The silencer is used for attenuation of the operation noise generated by ventilation equipment and spreaded in the air ducts. Designed for connection to round air ducts.	The SRV silencer has a polymer-coated steel casing filled with noncombustible material that has a protective coating to prevent fiber deformation. The silencer has an internal sound-absorbing element to increase sound attenuation efficiency.

Characteristics

Parameter	SRV-1250-1D	Measurement unit
Casing material	polymer coated steel	-
Mass	134.0	kg

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Brochure "VPVO and VDO fan accessories" (pdf 2.92Mb)

Download high quality image "SRV" (psd 697.58Kb)

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Dimensions

Characteristics

Noise level reduction

The values shown in the tables represent the difference between the sound power level (Lw) of the combination of the fan, the attenuator and the power of one fan.

To determine the sound power level of the fan equipped with a silencer, the insertion loss must be subtracted from the rated sound power level (Lw) of the fan on the mid-frequency spectrum in the octave band given in the fan specifications.

Model	Sound attenuation by frequency band [dB]								L_wA [dBA] Sound-power level, A-weighted
Model	63 Hz	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz	8000 Hz	L_wA [dBA] Sound-power level, A-weighted
SRV-1250-1D	5	7	12	20	19	14	13	10	23

Pressure drops