This post is in 2 parts.

Part-1 we deal with the theory.  The basic Hydrostatic equation and the Bernoulli’s equation.

I have used the customary US engineering units throughout.  This is mostly because almost all texts these days have a detailed SI units treatment of these equations and very little or none in IP units.

This is a big disadvantage for young engineers joining the HVAC field.  Hopefully this will help.

Building Hydronic Pressure Profile Part-1

Building Hydronic Pressure Profile Part-2