On Thu, 03 Mar 2005 11:22:46 -0800, Frank J Warner
wrote:



But I need ideas for a replacement that doesn't sound like a friggin'
50-Cal going off in my workshop.

Any help and recommendations would be appreciated. Do mfrs put dBs on
their specs anymore?

Stay away from direct-drive and oil-less compressors. The quietest
units are belt drive with larger displacement and low pump RPM. They
also tend to deliver more CFM per HP, and last longer. They don't
always list pump RPM but you can judge by looking at (or measuring)
the pulleys.

Look at model 3Z170 at
http://www.grainger.com/Grainger/wwg...e&CatPage=1403

They used to offer a complete compressor using this pump. Note the
efficiency: 8.3 CFM at 100 PSI and 645 RPM from 2 HP, which can run
on 110V. These are very quiet pumps. I've seen them used in HVAC
systems in building that use pneumatic dampers.