If a chilled water pumping system was maintaining 15 psi ∆P in a closed loop at the pumps in the basement of a 6 story building, would the ∆P read differently at each ascending floor?
If this is a closed system pressured above that produced by gravity then the pressure is the same everywhere except during flow.
If it is a gravity system the system will vary with elevation.
See: Head Pressure https://www.engineersedge.com/hydrau...sure_10054.htm
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