Good Chamber Type Silencer: Model M21 Expected Attenuation is 17 to 20 dBA Use a model M21 in residential and light industrial areas where background noise is relatively high and constant and the need for higher degrees of silencing is minimal. Example: In residential neighborhoods having high traffic or light industry with relatively constant background noise. Residents in these areas are typically accustomed to the noise or make some efforts to shield themselves from the ever present background noise. Use of an M21 can keep engine exhaust noise within existing levels.

	Typical Applications Internal combustion engine intakes and exhausts Blower intakes and discharges Vacuum pump discharges

	Features Advanced acoustical design Heavy duty, all welded construction and long service life Easily installed in any position Prime coated exterior finish

	Optional Accessories Explosion relief cover Flexible connectors Companion flanges Cleanout openings Side inlet(s) Horizontal or vertical support arrangements Special paint Stainless steel construction

To order or for more
information on the Maxim
Chamber Type
Silencers, Model M21,
call us at 832-554-0980 or
complete our Contact Form.

	Good Chamber Type Silencer: Model M21-E with inline inlet and outlet     Good Chamber Type Silencer: Model M21-S with side inlet.

	Attenuation for Good Chamber Type Silencer: Model M21

Good Chamber Type Silencer:
Model M21 Sizes and Specifications

N
Size	A	B	C	Min	Max	O	P	Est. Wt.	PDF
4"	14	34	4	5½	14	10	31 3/16	80
5"	16	39	5	6½	16	11	36 3/16	110
6"	18	45	6	7	19	12	42 5/16	145
8"	22	56	8	8½	25	14	53 ⅜	265
10"	26	59	10	10½	24½	16½	56	380
12"	30	69	12	12	30	18½	66 ⅛	570
14"	36	77	14	14	33	21½	74½	745
16"	40	87	16	17	39	23½	84½	1090
18"	45	100	18	19	44	26½	97	1430
20"	50	108	20	21	47	29	105¼	1790
22"	54	116	22	22	51	31	113¼	2210
24"	60	128	24	24	57	34	125¼	2645
26"	64	136	26	26	62	36	133½	2950
28"	68	151	28	27	70	38	148¾	3840
30"	72	162	30	29	75	40	159¾	4470

Download the Maxim M21 spec page here.