Head Unloader setup of 3Z180
(Florence KY )
Hello, I recently acquired a SPEEDAIRE Model 3z181 pump to use in my shop. I plan to run it with a 10 hp Dayton that I have and mount on 120 gallon tank.
I am not a pump expert by any means but usually figure out or can find information on what I need but I am perplexed here.
At first sight, this pump would appear to have a centrifugal unloader but in cleaning and getting ready to install it, I discovered that there is no valve mechanism in the housing and the housing has a plug in the fitting, all looks original.
I am sure this is normal but I have not seen it and help would be appreciated.