Sullair has high sump pressure

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by Joey
(New Brandeis, tx)

Sullair compressor is reading around 140 psi sump pressure while unloaded and blow down valve is releasing. Why isn’t sump pressure not dropping?

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Sullair high sump pressure
by: Doug in s.d.ca.

What model of Sullair is yours a 185.. what?

What is the nominal operating pressure?

Is pressure normal when loaded?

Is the intake closing when unloading?

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By Aidan Weeks

A passionate Mechanical Engineer with endless enthusiasm for fluid power - building off the back of over 18 years of high quality contribution and discussion stimulated by Bill Wade here at About Air Compressors. With both practical and theoretical experience in pneumatics and hydraulics, I'm putting my knowledge to work - and working my grey-matter through my research, assistance and publishing work here at About Air Compressors. Feel free to reach out any time! P.S. A HUGE shout out to Doug who really offers such great value to all visitors to About Air Compressors - once again, feeling like I'm standing on the shoulders of GIANTS by getting to work alongside such a great community

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