In article ,
Ignoramus27577 wrote:
How come there are no three stage compressors?

I personally used to work near a 4-stage - but it was not used much.
Several thousand PSI out, as best I recall. Fed into a wind tunnel...

There's one 3-stage on that watery inlet auction site as I write. Again,
high-pressure, special application.

"Bauer Mariner 3 Stage Air Compressor"

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