Help me about plumbing size of air the compressor discharge port?

by Yankeeflyboy
(Nevada)

I recently purchased a 60 gal stationary compressor. I plan to run 3/4″ copper lines throughout my shop. The discharge port on the compressor is 3/8″ in a large reducing bushing, apparently 2″.

Would it be advisable to replace this bushing with a 2″ to 3/4″ or just to use an adapter to increase from 3/8″ to 3/4″?

It just seems strange that the port is so small.

Compressed air tank

Compressed air tank discharge ports can be seen on the end, side and top of this new compressor tank

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A 3/8″ hole will flow a lot of air, Yankeeflyboy.

However, if this were my compressor, I would certainly remove the 3/8″ and use the 2″ to 3/4″ reducer bushing to remove any flow restriction that may be caused by the 3/8″ discharge port.

Why reduce the flow through the 3/8″ and then plumb back up to a larger pipe? Go with the 3/4″. It can’t hurt, for sure.

And, I applaud the use of copper as an air line for all the reasons written about on the pages of this site.

 

 

 


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