If the pressure differential across the circulating pump is 21.65 PSI, how many meters (feet) of head can the pump lift?

To determine how many meters or feet of head a pump can lift given a pressure differential, it is essential to understand the relationship between pressure and head. The formula to convert pressure (in PSI) to head (in feet) is:

[ \text{Head (ft)} = \frac{\text{Pressure (PSI)} \times 2.31}{\text{Specific Gravity of the Fluid}}. ]

For water, the specific gravity is approximately 1, so the formula simplifies to:

[ \text{Head (ft)} = \text{Pressure (PSI)} \times 2.31. ]

By using the pressure differential of 21.65 PSI, the calculation would be as follows:

[ \text{Head} = 21.65 , \text{PSI} \times 2.31 = 49.96 , \text{ft}. ]

When converting this to meters, the conversion factor is approximately 0.3048 meters per foot:

[ \text{Head (m)} = 49.96 , \text{ft} \times 0.3048 \approx 15.25 , \text{m}. ]

Given the