Head Pressure to PSI Formula:
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The pump head to PSI conversion calculates the pressure generated by a pump based on the height of the fluid column (head) it can produce. This is particularly important in hydraulic systems and water distribution.
The calculator uses the simple formula:
Where:
Explanation: The conversion factor 0.433 psi/ft comes from the specific weight of water (62.4 lb/ft³) divided by 144 in²/ft².
Details: Understanding the relationship between head and pressure is essential for pump selection, system design, and troubleshooting in water systems.
Tips: Simply enter the pump head in feet. The calculator will automatically compute the equivalent pressure in PSI for water.
Q1: Does this work for fluids other than water?
A: No, the 0.433 factor is specific to water. For other fluids, multiply by their specific gravity.
Q2: What is typical pump head for residential systems?
A: Residential water systems typically operate with 30-60 psi, equivalent to about 70-140 feet of head.
Q3: How does elevation affect this calculation?
A: The calculation already accounts for gravitational effects. For systems at high altitude, atmospheric pressure differences may need consideration.
Q4: Why is head measured in feet?
A: Head represents the height a pump can lift water, making feet a practical unit for vertical distance.
Q5: Can I use this for negative head (suction)?
A: Yes, the same conversion applies, but practical suction is limited by atmospheric pressure (about 34 feet at sea level).