1. What is Pump Head to PSI Conversion?

The Pump Head to PSI conversion calculates the pressure in pounds per square inch (PSI) that a pump can generate based on its head in feet. This is particularly useful for water systems as it helps in understanding the pressure capabilities of pumps.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( PSI \) — Pressure in pounds per square inch
• \( H \) — Pump head in feet
• \( 0.433 \) — Conversion factor for water (psi/ft)

Explanation: The conversion factor 0.433 psi/ft comes from the specific weight of water at standard conditions (62.4 lb/ft³) divided by 144 in²/ft².

3. Importance of Head to PSI Conversion

Details: Understanding the pressure a pump can generate is crucial for system design, ensuring adequate pressure for applications, and comparing pump performance specifications.

4. Using the Calculator

Tips: Simply enter the pump head in feet. The value must be positive. The calculator will automatically compute the equivalent pressure in PSI for water.

5. Frequently Asked Questions (FAQ)

Q1: Does this conversion work for fluids other than water?
A: No, the 0.433 factor is specific to water. For other fluids, you need to use their specific weight in the calculation.

Q2: What is typical pump head for residential applications?
A: Residential pumps typically have heads between 20-60 feet, corresponding to 8.7-26 psi.

Q3: How does elevation affect this conversion?
A: The conversion factor assumes standard conditions. At higher elevations, atmospheric pressure changes may affect actual system pressure.

Q4: What's the difference between head and pressure?
A: Head is energy per unit weight (feet), while pressure is force per unit area (psi). They're related through fluid density.

Q5: Can I use this for negative head (suction) calculations?
A: Yes, but remember that practical suction is limited by atmospheric pressure (about 34 feet or 14.7 psi at sea level).