Rectangular Attenuators

Products

Attenuators By Types

Tapered Q-Seal

N2Q - Q-Seal Rectangular Attenuators with Tapered Splitters

Features

The N2..QS rectangular Q-Seal tapered attenuator includes the qualities of the N2Tseries attenuator and incorporates an infill system protected by an impermeable plastic membrane/film.

The N2..QS series is suitable in medical and clean room applications and any sensitive ventilation systems requiring an infill material that prevents the possibility of insulation fibre ingress into the airstream.

Model	Width Increment	Free Area Ratio	Length	dB(A) Reduction
N2T05AQS	250	20%	600
N2T05BQS	250	20%	900
N2T05C2QS	250	20%	1400
N2T05CQS	250	20%	1200
N2T05EQS	250	20%	1800
N2T05FQS	250	20%	2100
N2T05GQS	250	20%	2400
N2T05HQS	250	20%	2700
N2T05IQS	250	20%	3000
N2T05JQS	250	20%	3300
N2T05KQS	250	20%	3600
N2T05LQS	250	20%	3900
N2T05MQS	250	20%	4200
N2T05NQS	250	20%	4500
N2T05OQS	250	20%	4800
N2T05PQS	250	20%	5100
N2T05QQS	250	20%	5400
N2T05RQS	250	20%	5700
N2T05SQS	250	20%	6000
N2T07AQS	275	27%	600	15
N2T07BQS	275	27%	900	20
N2T07C2QS	275	27%	1400	25
N2T07CQS	275	27%	1200	23
N2T07EQS	275	27%	1800	28
N2T07FQS	275	27%	2100	32
N2T07GQS	275	27%	2400	33
N2T07HQS	275	27%	2700
N2T07IQS	275	27%	3000
N2T07JQS	275	27%	3300
N2T07KQS	275	27%	3600
N2T07LQS	275	27%	3900
N2T07MQS	275	27%	4200
N2T07NQS	275	27%	4500
N2T07OQS	275	27%	4800
N2T07PQS	275	27%	5100
N2T07QQS	275	27%	5400
N2T07RQS	275	27%	5700
N2T07SQS	275	27%	6000
N2T10AQS	300	33%	600	13
N2T10BQS	300	33%	900	17
N2T10C2QS	300	33%	1400	22
N2T10CQS	300	33%	1200	21
N2T10EQS	300	33%	1800	26
N2T10FQS	300	33%	2100	27
N2T10GQS	300	33%	2400	29
N2T10HQS	300	33%	2700
N2T10IQS	300	33%	3000
N2T10JQS	300	33%	3300
N2T10KQS	300	33%	3600
N2T10LQS	300	33%	3900
N2T12AQS	325	38%	600	11
N2T12BQS	325	38%	900	16
N2T12C2QS	325	38%	1400	21
N2T12CQS	325	38%	1200	19
N2T12EQS	325	38%	1800	24
N2T12FQS	325	38%	2100	26
N2T12GQS	325	38%	2400	28
N2T12HQS	325	38%	2700

N3Q - Q-Seal Rectangular Attenuators with Tapered Splitters

Features

The N3T..QS rectangular Q-Seal tapered attenuator includes the qualities of the N3T series attenuator and incorporates an infill system protected by an impermeable plastic membrane/film.

The N3T..QS series is suitable in medical and clean room applications and any sensitive ventilation systems requiring an infill material that prevents the possibility of insulation fibre ingress into the airstream.

Model	Width Increment	Free Area Ratio	Length	dB(A) Reduction
N3T10AQS	400	25%	600
N3T10BQS	400	25%	900
N3T10C2QS	400	25%	1400
N3T10CQS	400	25%	1200
N3T10EQS	400	25%	1800
N3T10FQS	400	25%	2100
N3T10GQS	400	25%	2400
N3T10HQS	400	25%	2700
N3T10IQS	400	25%	3000
N3T10JQS	400	25%	3300
N3T10KQS	400	25%	3600
N3T10LQS	400	25%	3900
N3T10MQS	400	25%	4200
N3T10NQS	400	25%	4500
N3T10OQS	400	25%	4800
N3T10PQS	400	25%	5100
N3T10QQS	400	25%	5400
N3T10RQS	400	25%	5700
N3T10SQS	400	25%	6000
N3T12AQS	425	29%	600
N3T12BQS	425	29%	900
N3T12C2QS	425	29%	1400
N3T12CQS	425	29%	1200
N3T12EQS	425	29%	1800
N3T12FQS	425	29%	2100
N3T12GQS	425	29%	2400
N3T12HQS	425	29%	2700
N3T12IQS	425	29%	3000
N3T12JQS	425	29%	3300
N3T12KQS	425	29%	3600
N3T12LQS	425	29%	3900
N3T12MQS	425	29%	4200
N3T12NQS	425	29%	4500
N3T12OQS	425	29%	4800
N3T12PQS	425	29%	5100
N3T12QQS	425	29%	5400
N3T12RQS	425	29%	5700
N3T12SQS	425	29%	6000
N3T15AQS	450	33%	600	9
N3T15BQS	450	33%	900	14
N3T15C2QS	450	33%	1400	18
N3T15CQS	450	33%	1200	17
N3T15EQS	450	33%	1800	23
N3T15FQS	450	33%	2100	25
N3T15GQS	450	33%	2400	26
N3T15HQS	450	33%	2700
N3T15IQS	450	33%	3000
N3T15JQS	450	33%	3300
N3T15KQS	450	33%	3600
N3T15LQS	450	33%	3900
N3T15MQS	450	33%	4200
N3T15NQS	450	33%	4500
N3T15OQS	450	33%	4800
N3T15PQS	450	33%	5100
N3T15QQS	450	33%	5400
N3T15RQS	450	33%	5700
N3T15SQS	450	33%	6000
N3T17AQS	475	37%	600	9
N3T17BQS	475	37%	900	14
N3T17C2QS	475	37%	1400	18
N3T17CQS	475	37%	1200	17
N3T17EQS	475	37%	1800	23
N3T17FQS	475	37%	2100	25
N3T17GQS	475	37%	2400	26
N3T17HQS	475	37%	2700
N3T17IQS	475	37%	3000
N3T17JQS	475	37%	3300
N3T17KQS	475	37%	3600
N3T17LQS	475	37%	3900
N3T17MQS	475	37%	4200
N3T17NQS	475	37%	4500
N3T17OQS	475	37%	4800
N3T17PQS	475	37%	5100
N3T17QQS	475	37%	5400
N3T17RQS	475	37%	5700
N3T17SQS	475	37%	6000
N3T20AQS	500	40%	600	9
N3T20BQS	500	40%	900	14
N3T20C2QS	500	40%	1400	18
N3T20CQS	500	40%	1200	17
N3T20EQS	500	40%	1800	23
N3T20FQS	500	40%	2100	25
N3T20GQS	500	40%	2400	26
N3T20HQS	500	40%	2700
N3T20IQS	500	40%	3000
N3T20JQS	500	40%	3300
N3T20KQS	500	40%	3600
N3T20LQS	500	40%	3900
N3T20MQS	500	40%	4200
N3T20NQS	500	40%	4500
N3T20OQS	500	40%	4800
N3T20PQS	500	40%	5100
N3T20QQS	500	40%	5400
N3T20RQS	500	40%	5700
N3T20SQS	500	40%	6000
N3T22AQS	525	43%	600	9
N3T22BQS	525	43%	900	14
N3T22C2QS	525	43%	1400	18
N3T22CQS	525	43%	1200	17
N3T22EQS	525	43%	1800	23
N3T22FQS	525	43%	2100	25
N3T22GQS	525	43%	2400	26
N3T22HQS	525	43%	2700
N3T22IQS	525	43%	3000
N3T22JQS	525	43%	3300
N3T22KQS	525	43%	3600
N3T22LQS	525	43%	3900
N3T22MQS	525	43%	4200
N3T22NQS	525	43%	4500
N3T22OQS	525	43%	4800
N3T22PQS	525	43%	5100
N3T22QQS	525	43%	5400
N3T22RQS	525	43%	5700
N3T22SQS	525	43%	6000
N3T25AQS	550	45%	600	9
N3T25BQS	550	45%	900	14
N3T25C2QS	550	45%	1400	18
N3T25CQS	550	45%	1200	17
N3T25EQS	550	45%	1800	23
N3T25FQS	550	45%	2100	25
N3T25GQS	550	45%	2400	26
N3T25HQS	550	45%	2700
N3T25IQS	550	45%	3000
N3T25JQS	550	45%	3300
N3T25KQS	550	45%	3600
N3T25LQS	550	45%	3900
N3T25MQS	550	45%	4200
N3T25NQS	550	45%	4500
N3T25OQS	550	45%	4800
N3T25PQS	550	45%	5100
N3T25QQS	550	45%	5400
N3T25RQS	550	45%	5700
N3T25SQS	550	45%	6000
N3T30AQS	600	50%	600	9
N3T30BQS	600	50%	900	14
N3T30C2QS	600	50%	1400	18
N3T30CQS	600	50%	1200	17
N3T30EQS	600	50%	1800	23
N3T30FQS	600	50%	2100	25
N3T30GQS	600	50%	2400	26
N3T30HQS	600	50%	2700
N3T30IQS	600	50%	3000
N3T30JQS	600	50%	3300
N3T30KQS	600	50%	3600
N3T30LQS	600	50%	3900
N3T30MQS	600	50%	4200
N3T30NQS	600	50%	4500
N3T30OQS	600	50%	4800
N3T30PQS	600	50%	5100
N3T30QQS	600	50%	5400
N3T30RQS	600	50%	5700
N3T30SQS	600	50%	6000

RQ - Q-Seal Rectangular Attenuators with Tapered Splitters

Features

The RT..QS (Q-Seal) rectangular attenuators are available in a wide range of dimensions. They have tapered splitters which provide a lower noise reduction in comparison to straight splitter variants, but have a lower static pressure loss across the attenuator.

RT..QS (Q-Seal) models use a bio-soluble acoustic grade glass wool or mineral wool infill, fullw wrapped in an impermeable plastic membrane/film, encased in finely perforated galvanised steel.

They are used in critical applications, medical and clean rooms, and any sensitive ventilation systems requiring a wrapped infill material to prevent the possibility of insulation fibre ingress into the airstream. They are also suitable where the insulation medium is directly exposed to weather, grease, liquid or dusts. Attenuators of this model type may also be cleaned periodically by low-pressure steam or pressure washer equipment.

Model	Width Increment	Free Area Ratio	Length	dB(A) Reduction
RT07AQS	275	27%	600	12
RT07BQS	275	27%	900	15
RT07CQS	275	27%	1200	18
RT07DQS	275	27%	1500	21
RT07EQS	275	27%	1800	23
RT07FQS	275	27%	2100	25
RT07GQS	275	27%	2400	26
RT10AQS	300	33%	600	11
RT10BQS	300	33%	900	14
RT10CQS	300	33%	1200	17
RT10DQS	300	33%	1500	19
RT10EQS	300	33%	1800	21
RT10FQS	300	33%	2100	23
RT10GQS	300	33%	2400	24
RT12AQS	325	38%	600	10
RT12BQS	325	38%	900	13
RT12CQS	325	38%	1200	15
RT12DQS	325	38%	1500	17
RT12EQS	325	38%	1800	19
RT12FQS	325	38%	2100	21
RT12GQS	325	38%	2400	22
RT15AQS	350	43%	600	9
RT15BQS	350	43%	900	12
RT15CQS	350	43%	1200	14
RT15DQS	350	43%	1500	15
RT15EQS	350	43%	1800	17
RT15FQS	350	43%	2100	19
RT15GQS	350	43%	2400	20
RT17AQS	375	47%	600	8
RT17BQS	375	47%	900	10
RT17CQS	375	47%	1200	12
RT17DQS	375	47%	1500	14
RT17EQS	375	47%	1800	16
RT17FQS	375	47%	2100	17
RT17GQS	375	47%	2400	18
RT20AQS	400	50%	600	7
RT20BQS	400	50%	900	9
RT20CQS	400	50%	1200	11
RT20DQS	400	50%	1500	12
RT20EQS	400	50%	1800	14
RT20FQS	400	50%	2100	15
RT20GQS	400	50%	2400	16
RT22AQS	425	53%	600	6
RT22BQS	425	53%	900	8
RT22CQS	425	53%	1200	10
RT22DQS	425	53%	1500	11
RT22EQS	425	53%	1800	13
RT22FQS	425	53%	2100	14
RT22GQS	425	53%	2400	15
RT25AQS	450	56%	600	5
RT25BQS	450	56%	900	7
RT25CQS	450	56%	1200	9
RT25DQS	450	56%	1500	10
RT25EQS	450	56%	1800	12
RT25FQS	450	56%	2100	13
RT25GQS	450	56%	2400	14