M72 Extreme Chamber Exhaust Silencers

M72 Extreme Chamber Exhaust Silencers

The M72 is engineered for areas requiring extreme grade noise reductions and is a reactive and absorptive silencer designed to achieve maximum attenuation as well as minimize radiated noise from breakout, without resorting to multiple silencers in series or custom designed silencers.

Typical application: Internal combustion engine exhausts in extremely low background noise areas, such as residential or hospital locations away from busy streets..

Features

• Advanced acoustical design
• Heavy duty, all welded construction and long service life
• Easily installed in any position
• High heat silicone black finish
• Connections: Sizes 3.5 and under MNPT, 4 and up ANSI pattern flanged
• Sizes 6 and under are two chambered, 8 and above are three chambers
• Drain connections

Options / Accessories

• Explosion relief cover
• Flexible connectors
• Companion flanges
• Cleanout openings
• Custom inlet/outlet size, location and multiple orientation types available
• Horizontal or vertical support arrangements
• Aluminized steel, Stainless Steel 304 or 316 construction available
• Special paints and finishes available
• Complete range of exhaust accessories

Attenuation Curves

To download the Maxim M72 spec page click here

Part No*	C Size	A	B	N Min	N Max	O	P	R Min	S	H	Est Wt	C1	C2
M72-1.5	1.5	12	60	5		9	57	5	54	3	188
M72-2	2	12	64	6		9	61	6	58	3	204
M72-2.5	2.5	14	70	7		10	67	7	64	3	264
M72-3	3	16	74	7		11	71	7	68	3	329
M72-3.5	3.5	18	78	8		12	75	8	72	3	389
M72-4	4	22	84	8		15	80	8	76	4	468
M72-5	5	26	97	10		17	93	10	89	4	698
M72-6	6	30	110	12		19	106	12	102	4	944
M72-8	8	36	134	13		22	130	13	126	4	1511
M72-10	10	40	150	15		24	146	15	144	4	1910
M72-12	12	40	158	15		24	154	15	150	4	2084
M72-14	14	45	174	18		27.5	169	18	164	5	2549
M72-16	16	50	194	21		30	189	21	184	5	3237
M72-18	18	54	208	23		32	203	23	198	5	3944
M72-20	20	60	226	25		35	221	25	216	5	5443
M72-22	22	64	228	26		37	223	26	218	5	6006
M72-24	24	68	233	27		39	228	27	223	5	6638
M72-26	26	72	234	29		41	229	29	224	5	7196
M72-28	28	78	244	30		44	239	30	234	5	9513
M72-30	30	84	254	32		47	249	32	244	5	10807
All dimensions are in inches. All weights are in pounds. Weights are approximate. Listed sound data is based on typical performance and should not be considered absolute. *See nomenclature guide for additional information on part number creation.

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M Series Chamber Silencers

M11	Industrial grade, 15 to 20 dBA expected attenuation
M22	Residential grade, 20 to 25 dBA expected attenuation
M32	Critical grade, 25 to 32 dBA expected attenuation
M42	Super Critical grade, 30 to 38 dBA expected attentation
M52	Hospital grade, 35 to 42 dBA expected attenuation
M62	Hospital Plus grade, 35 to 50 dBA expected attenuation
M72	Extreme grade, 40 to 55 dBA expected attenuation
M82	Super Extreme grade, 45 to 60 dBA expected attenuation