DucoMax SR

DucoMax ZR

DucoMax SR is a self regulating, acoustic vent (sound attenuating ventilator), specifically engineered for situations exposed to high levels of noise disturbance. The various types are attractively designed and offer excellent acoustic performance.

Learn more about acoustic ventilation

Remark: The application height depends on the installation situation, see link.duco.eu/installation-height for more info.

Suited to high-rise applications
Four fitting depths: Corto, Medio, Alto, Largo
Suited to situations giving rise to high levels of noise disturbance
No whistling sounds with positive or negative pressure thanks to active closing aluminium valve
Excellent wind and waterproofing

Technical features

U - value	2,58 W/m²/K
Windtightness in closed position	600 Pa
Watertightness in closed position	1050 Pa
Glass reduction	135 mm
Ventilator height	105 mm
Glasgoot	26 mm 30 mm 34 mm 38 mm Glass profile 42 mm Glass profile 46 mm Glass profile 50 mm Glass profile 54 mm mm
Transom mounting	Transom profile 20 mm mm Transom profile 21 mm mm Transom profile 24 mm mm
Ventilator height compact transom	145 mm
Installation height with compact transom	115 mm
Standard control	flap handle 15 mm

Acoustic values octave band values

Type	Octave band value at 125 Hz (dB)	Octave band value at 250 Hz (dB)	Octave band value at 500 Hz (dB)	Octave band value at 1000 Hz (dB)	Octave band value at 2000 Hz (dB)
Corto 10 'SR'	31,5	31,6	40,6	45,9	40,4
Corto 15 'SR'	29,2	28,9	35,0	40,1	37,9
Corto 20 'SR'	28,6	27,9	32,7	38,5	36,8
Corto 25 'SR'	28,0	27,3	31,8	37,0	35,2
Medio 10 'SR'	32,5	31,2	42,8	48,5	45,9
Medio 15 'SR'	30,7	28,4	37,2	42,6	43,3
Medio 20 'SR'	29,1	26,8	35,6	40,8	41,6
Medio 25 'SR'	28,6	26,2	33,7	38,6	39,8
Alto 10 'SR'	32,4	30,7	44,8	52,3	50,2
Alto 15 'SR'	30,7	28,6	39,1	45,9	47,1
Alto 20 'SR'	30,2	27,2	36,7	43,5	44,5
Alto 25 'SR'	29,7	26,2	35,1	41,0	42,1
Largo 10 'SR'	34,8	36,2	45,5	54,4	56,1
Largo 15 'SR'	32,2	31,5	39,0	45,6	48,6
Largo 20 'SR'	30,9	28,6	36,3	44,0	45,0
Largo 25 'SR'	30,8	28,1	34,0	39,6	41,9

Acoustic performance

Type	Dn,e,W (C;Ctr) open position (dB)	Dn,e,W (C;Ctr) closed position (dB)	Dne,A open position (dB(A))	Dne,Atr open position (dB(A))
Corto 10 'SR'	41 (-1;-2)	57 (-2, -4)	40	39
Corto 15 'SR'	38 (-1;-3)	55 (-2, -4)	37	35
Corto 20 'SR'	36 (-1;-2)	54 (-2, -3)	35	34
Corto 25 'SR'	35 (-1;-2)	53 (-1, -2)	34	33
Medio 10 'SR'	44 (-1;-4)	58 (-2, -5)	43	40
Medio 15 'SR'	40 (-1;-4)	57 (-2, -5)	39	36
Medio 20 'SR'	39 (-2;-4)	55 (-2, -4)	37	35
Medio 25 'SR'	37 (-1;-4)	55 (-1, -4)	36	33
Alto 10 'SR'	46 (-2;-6)	60 (-2, -6)	44	40
Alto 15 'SR'	42 (-1;-5)	58 (-2, -5)	41	37
Alto 20 'SR'	40 (-1;-4)	57 (-2, -6)	39	36
Alto 25 'SR'	38 (-1;-4)	56 (-2, -5)	37	34
Largo 10 'SR'	49 (-1;-5)	62 (-2, -5)	48	44
Largo 15 'SR'	43 (-1;-4)	60 (-1, -5)	42	39
Largo 20 'SR'	41 (-2;-4)	57 (-1, -5)	39	37
Largo 25 'SR'	38 (-1;-3)	55 (-1, -4)	37	35

Performance

Type	Airflow at 1 Pa (dm3/s/m)	Airflow at 2 Pa [m3/h/m]	Equivalent area at 1 Pa vent (mm2/m)	Free area performance (mm2/m)
Corto 10 'SR'	13,0	67,3	16542,5	10000
Corto 15 'SR'	20,7	104,8	26340,8	15000
Corto 20 'SR'	26,9	137,1	34230,3	20000
Corto 25 'SR'	32,0	163,1	40720,0	25000
Medio 10 'SR'	11,2	56,6	14252,0	10000
Medio 15 'SR'	17,7	91,4	22523,3	15000
Medio 20 'SR'	25,6	132,5	32576,0	20000
Medio 25 'SR'	30,8	156,6	39193,0	25000
Alto 10 'SR'	11,9	60,8	15142,8	10000
Alto 15 'SR'	17,5	90,4	22268,8	15000
Alto 20 'SR'	26,3	134,6	33466,8	20000
Alto 25 'SR'	29,7	150,5	37793,3	25000
Largo 10 'SR'	11,9	60,8	15142,8	10000
Largo 15 'SR'	17,9	92,5	22777,8	15000
Largo 20 'SR'	26,9	137,2	34230,3	20000
Largo 25 'SR'	28,9	147,6	36775,3	25000