M42 Super Critical Chamber Exhaust Silencers

30 to 38 dBA Noise Reduction

The M42 is engineered for quiet residential areas where background noise is relatively low, and super critical grade silencing is required.

Typical application: Internal combustion engine exhausts in truly quiet residential areas where ambient noise levels are very low and the sound of birds singing and the soft hum of air conditioning units may be the noticeable noise features.

Features

  • Advanced acoustical design
  • Heavy duty, all welded construction and long service life
  • Easily installed in any position
  • High heat silicone black finish
  • Connections: ANSI pattern flanged
  • Two 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 M42 spec page click here

Part No* C Size A B N Min N Max O P R Min S H Est Wt C1 C2
M42-4 4 16 51 6.5 18 12 47 6.5 43 4 90 EIEO SIEO
M42-5 5 18 62 7 24 13 58 7 54 4 120 EIEO SIEO
M42-6 6 22 69 8.5 26 15 65 8.5 61 4 175 EIEO SIEO
M42-8 8 26 82 10 32 17 78 10 74 4 304 EIEO SIEO
M42-10 10 30 102 12 45 19 98 12 94 4 484 EIEO SIEO
M42-12 12 36 112 15 51 22 108 15 104 4 659 EIEO SIEO
M42-14 14 40 120 15.5 52 25 115 15.5 110 5 930 EIEO SIEO
M42-16 16 45 126 17 55 27.5 121 17 116 5 1140 EIEO SIEO
M42-18 18 50 135 19.5 60 30 130 19.5 125 5 1623 EIEO SIEO
M42-20 20 54 149 21.5 67 32 144 21.5 139 5 2055 EIEO SIEO
M42-22 22 60 157 23 72 35 152 23 147 5 2464 EIEO SIEO
M42-24 24 64 164 24.5 75 37 159 24.5 154 5 2803 EIEO SIEO
M42-26 26 68 184 25.5 85 39 179 25.5 174 5 3282 EIEO SIEO
M42-28 28 72 205 27 97 41 200 27 195 5 3788 EIEO SIEO
M42-30 30 78 220 28.5 104 44 215 28.5 210 5 5293 EIEO SIEO
  • 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

To order or for more information, call us at 800-234-6778 or complete our Contact Form

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