Do I need a blower silencer?

The basic mechanism of a positive displacement blower is two or three rotating lobes that trap air every time they sweep by the inlet and discharge connection. This creates a pressure pulse that can cause vibration in your piping system and generate enough noise that it can be a nuisance or even a health concern for those working nearby the blower.  For these two reasons, blower silencers are strongly recommended for most blower and vacuum pump applications.

In pressure systems, silencers are typically placed at the blower’s inlet and discharge.  For vacuum applications a silencer is typically used on the discharge only.

The articles below (Types of Blower Silencers and Silencer Sizing) provide more in-depth information about the types of silencers available and how to select the correct silencer for your application.  Contact our team if you need assistance choosing the right silencer for your application.

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Types of Blower Silencers

Blower silencers are used to reduce both noise and vibration. Learn about the differences between Chamber, Absorptive, and Chamber-Absorptive silencers to identify the silencer that is right for your application.

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Silencer Sizing

The normal criterion for silencer type selection is the Pitch Line Veloctiy (PLV) of your blower system. PLV is the peripheral velocity of the timing gear, equal to the product of the gear circumference and the rotative speed of the...

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