MB11 Model

MAXIM SILENCER APPLICATIONS

Size A B C Est. Wt.
 * 1" 4 3/4 16 1 10
* 1 1/2" 4 3/4 20 1 1/2 15
* 2" 5 3/4 24 2 20
* 2 1/2" 5 3/4 26 2 1/2 25
* 3" 7 30 3 40
* 3 1/2" 7 34 3 1/2 45
4" 10 1/4 38 4 90
5" 12 42 5 120
6" 12 48 6 145
8" 14 54 8 200
10" 16 67 10 315
12" 18 79 12 420
14" 20 91 14 670
16" 22 103 16 840
18" 30 71 18 980
20" 36 83 20 1370
22" 36 89 22 1505
24" 40 98 24 1920
26" 45 106 26 2325
28" 45 111 28 2495
30" 50 121 30 2995

* Size 3 1/2" and smaller have NPT connections

Note: Dimensions are in inches, weights are in pounds.

Typical Applications: Features: Optional Accessories:
• Rotary Positive Blower Intake
and Discharge
• Vacuum Pump Intake and
Discharge
• Centrifugal Blower Intake
and Discharge		 • Superior Acoustical Design
and Long Service Life
• Excellent Sound Absorbing
Material
• Extra Heavy Wall, All Welded
Construction
• Prime Coated Exterior Finish
• Low Pressure Drop		 • Flexible Connector
• Companion Flanges
• Various Supporting
Arrangements
• Special Paints
Sample Specification:
The silencer shall be a Maxim Model MB11 with extra heavy wall, all welded construction, and protected by a single coat of shop primer. Acoustical packing shall be polyester wool or other material suitable for the application, protected by perforated metal with wire screen/cloth. The silencer shall be complete with the following accessories.

Use for a high degree of overall attenuation on
blower intakes or discharges. For intake service,
specify the MB31-I.

Use for good attenuation on blower intakes or
discharges. For intake service, specify the MB21-I.

MB11 / MB11-I - Straight Through
Acoustically Packed Silencer for Blower
Service – Typical Attenuation Varies from
15 to 30 dBA With Application

Use for a high degree of attenuation of high
frequency noise on blower intakes or discharges.
For intake service, specify the MB11-I.