M51 Legacy Chamber Silencers
28 to 32 dBA Noise Reduction
Use a model M51 for the highest degree of silencing in areas requiring “hospital grade” noise reductions. The M51 is presently the top-of-the-line silencer without resorting to multiple silencers in series or custom designed silencers. Example: Suitable for use where background noise is extremely low, such as residential or hospital locations away from busy streets.
Typical Applications: Internal combustion engine intakes and exhausts, blower intakes and discharges and 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
- Sizes 1 to 3 have MNPT connections
- Sizes 1-10 are two chambered, 12 and larger have three chambers
Options / Accessories
- Explosion relief cover
- Flexible connectors
- Companion flanges
- Cleanout openings
- Side inlet(s)and outlet(s)
- Horizontal or vertical support arrangements
- Special paint
- Stainless steel construction
Attenuation Curves



To download the Maxim M51 spec page click here
C Size | A | B | N Min | N Max | O | P | Est Wt | Drawing | ||
1.5 | 7 | 26 | 3 | 11 | 6.5 | 5 1/2 | 19 | |||
2 | 10.25 | 25 | 3.5 | 10.5 | 8 | 7 1/8 | 27 | |||
2.5 | 12 | 26 | 4.5 | 15.5 | 9 | 33 1/4 | 45 | |||
3 | 14 | 45 | 5.25 | 21.25 | 10 | 42 1/2 | 80 | |||
3.5 | 16 | 53 | 6 | 25 | 11 | 50 1/4 | 95 | |||
4 | 18 | 64 | 6.5 | 31 | 12 | 61 1/4 | 200 | |||
5 | 22 | 72 | 8 | 35 | 14 | 69 1/4 | 285 | |||
6 | 26 | 85 | 9 | 41.5 | 16 | 82 1/2 | 390 | |||
8 | 30 | 103 | 10.5 | 50 | 18.5 | 100 | 585 | |||
10 | 36 | 118 | 12.5 | 59 | 21.5 | 115 | 860 | |||
12 | 36 | 146 | 13 | 58 | 21.5 | 143 | 1250 | |||
14 | 40 | 145 | 16.5 | 56 | 23.5 | 142 | 1525 | |||
16 | 45 | 164 | 18 | 63 | 26 | 161 1/4 | 2150 | |||
18 | 50 | 188 | 20 | 74 | 29 | 185 | 3450 | |||
20 | 54 | 217 | 21 | 84 | 31 | 214 | 4075 | |||
22 | 60 | 230 | 23 | 92 | 34 | 227 | 5050 | |||
24 | 64 | 258 | 25 | 105 | 36 | 255 1/4 | 6075 | |||
26 | 68 | 283 | 26 | 115 | 38 | 280 1/4 | 7325 | |||
28 | 72 | 315 | 28 | 128 | 40 | 312 1/4 | 8225 | |||
30 | 78 | 326 | 30 | 133 | 43 | 323 1/2 | 9250 | |||
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