SR series (round)

Galvanized steel silencers specially designed for noise reduction in ventilation systems, kitchen hood ventilation and other application were noise is a concern.

Traditionally SR silencers are joined to round ducts and mounted behind or in front of the fan.

Vents silencers considerably reduce sound level of the ventilation system without interrupting the airflow. On both inlet and outlet silencer is compacted with rubber gasket.

Model Duct Dia. D D1 L b SR 100/600 4” 7 7/8” 3 15/16” 23 5/8” 1 15/16” SR 100/900 4” 7 7/8” 3 15/16” 35 7/16” 1 15/16” SR 150/600 6” 9 13/16” 5 7/8” 23 5/8” 1 15/16” SR 150/900 6” 9 13/16” 5 7/8” 35 7/16” 1 15/16” SR 200/600 8” 11 13/16” 7 7/8” 23 5/8” 1 15/16” SR 200/900 8” 11 13/16” 7 7/8” 35 7/16” 1 15/16” SR 250/600 10” 13 3/4” 9 13/16” 23 5/8” 1 15/16” SR 250/900 10” 13 3/4” 9 13/16” 35 7/16” 1 15/16” SR 315/600 12 3/8” 16 5/16” 12 3/8” 23 5/8” 1 15/16” SR 315/900 12 3/8” 16 5/16” 12 3/8” 35 7/16” 1 15/16”

Sound reduction

Model		63 Hz		125 Hz		250 Hz		500 Hz		1000 Hz		2000 Hz		4000 Hz		8000 Hz
SR 100/600		4		8		10		20		34		30		13		14
SR 100/900		5		10		15		23		44		30		16		15
SR 150/600		2		4		8		16		32		11		7		7
SR 150/900		3		5		9		18		36		25		13		14
SR 200/600		2		4		6		10		27		13		7		7
SR 200/900		3		7		11		20		39		23		8		7
SR 250/600		4		5		6		11		22		12		7		6
SR 250/900		4		5		7		16		32		20		12		10
SR 315/600		2		4		5		10		17		9		6		5
SR 315/900		3		5		8		17		30		14		10		8

Pressure loss graphics determination