Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Pumps and specific gravity

Eric
Eric Member Posts: 95
If you dead head a pump(close discharge valve) Is the pressure reading on the pump discharge affected by specific gravity of fluid.

I know pumps will pump the same height independent of SG and it that case the column height of fluid will affect pressure gauge reading. BUT if you dead head wiht a closed valve? All pump book examples show the column height and not a closed discharge valve.

My answer is NO. Only viscosity will affect dead head pressure since this is all pump sees of fluid with no flow. Any other answers?
This discussion has been closed.