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SAR • Circular sound attenuators

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Circular
Galvanized steel

Alternative products

SAR-G • Circular sound attenuators

Datasheet Other / Declaration of conformity insulation

Circular sound attenuator in galvanized steel with insulation shell thickness between 50 and 100 mm

Composition

Circular silencers are designed with an external galvanised duct system
Inner casing is made of perforated sheet steel
Cavity is filled with soundabsorbent mineral wool

Mounting

The attenuators should be mounted using duct suspension clamps, type OBMC, around the duct connection Ød
The outside diameter ØD of these attenuators may have small deviations in size

Sound attenuation values

SAR	Attenuation dB
SAR	125Hz	250Hz	500Hz	1kHz	2kHz	4kKz	8kHz
SAR 100 L=900	8	15	27	36	42	47	24
SAR 125 L=600	6	12	22	28	37	38	22
SAR 125 L=900	9	18	30	40	48	43	24
SAR 150 L=600	4	9	17	2	32	29	18
SAR 150 L=900	7	15	20	35	45	36	20
SAR 160 L=600	5	10	18	23	33	30	19
SAR 160 L=900	8	16	27	36	47	37	21
SAR 180 L=600	6	9	17	22	32	29	18
SAR 180 L=900	9	15	26	35	46	36	20
SAR 200 L=900	7	13	24	31	44	31	20
SAR 250 L=900	8	15	29	34	47	33	17
SAR 315 L=900	6	12	22	24	36	26	19
SAR 355 L=900	7	13	21	25	37	27	21
SAR 400 L=900	6	12	20	26	32	28	24
SAR 450 L=900	6	9	14	23	21	24	14
SAR 500 L=1200	7	11	15	24	22	25	16
SAR 560 L=1200	7	13	16	24	21	24	15
SAR 630 L=1200	7	14	18	25	21	21	15

Pressure loss

Dimensions

	d [mm]	D [mm]	L [mm]
SAR 100 L=900	100	200	900
SAR 125 L=600	125	200	600
SAR 125 L=900	125	200	900
SAR 150 L=600	150	250	600
SAR 150 L=900	150	250	900
SAR 160 L=600	160	250	600
SAR 160 L=900	160	250	900
SAR 180 L=600	180	315	600
SAR 180 L=900	180	315	900
SAR 200 L=900	200	315	900
SAR 250 L=900	250	400	900
SAR 315 L=900	315	500	900
SAR 355 L=900	355	500	900
SAR 400 L=900	400	630	900
SAR 450 L=900	450	630	900
SAR 500 L=1200	500	630	1200
SAR 560 L=1200	560	800	1200
SAR 630 L=1200	630	800	1200

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