About Us    Contact Us

Noisy unloader valve?

Published Categorized as Uncategorized 1 Comment on Noisy unloader valve?

My unloader valve too noisy!

by John

Hi Bill

I have a silent compressor with the unloader built into the pressure switch.

Is there any way to reduce/muffle the noise when the unloader operates?

The compressor is a very quiet runner so i can use it at night but the unloader discharge is akin to the air brakes on a truck.

Good point, John. The “psshhttt” of an unloader can be startling if you are using a silent air compressor.

Take a look at the unloader valve itself, and see where the air escapes. Is it a single hole, or is air getting out on both sides? Or is air exhausting inside the switch housing with no single point of exit?

There are such things as air mufflers but plumbing the unloader into a muffler might be problematical.

Another solution may be to put the whole compressor (assuming it’s a fairly small one?) into a large plastic or wooden tote. Ensure that there’s a hole for both wire in and hose out, and a larger hole on the side away from you so that air can get in and out freely.

Monitor during use to be sure the compressor doesn’t overheat.

That should muffle the noise pretty well, I would think.

New comment? New question? Please add it here along with photos to help others help you with your compressor and equipment problem!

By Bill Wade

About Air Compressors has been helping folks with their Air Compressor Problems since 2002 online. We're a community of DIY and Compressed Air professionals who are keen to support everyone across the globe with their air compressor issues and troubleshooting. Whether you're trying to identify an old air compressor, or troubleshoot an error code on a sophisticated new industrial air compressor - the community at About-Air-Compressors.com is here to help you

Notify of
1 Comment
Inline Feedbacks
View all comments