1. What is Pump Discharge Pressure Calculation?

The Pump Discharge Pressure Calculation converts hydraulic head into pressure using the specific gravity of the fluid. This is essential for pump selection, system design, and pressure management in fluid handling systems.

2. How Does the Calculator Work?

The calculator uses the pressure formula:

Where:

• \( Head \) — Total head in feet (ft)
• \( SG \) — Specific gravity of the fluid (unitless)
• \( 0.433 \) — Conversion factor from feet of water to psi

Explanation: The formula converts the energy head of a fluid column into equivalent pressure, accounting for the fluid's density relative to water.

3. Importance of Pressure Calculation

Details: Accurate pressure calculation is crucial for proper pump sizing, system design, ensuring adequate pressure for processes, and preventing system failures or inefficiencies.

4. Using the Calculator

Tips: Enter head in feet and specific gravity (1.0 for water). Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is specific gravity (SG)?
A: Specific gravity is the ratio of a fluid's density to the density of water at 4°C. Water has SG = 1.0.

Q2: Why is the conversion factor 0.433?
A: 0.433 psi/ft comes from the weight of a 1-foot column of water (62.4 lb/ft³ ÷ 144 in²/ft²).

Q3: What types of fluids can this calculator handle?
A: This calculator works for any Newtonian fluid when you know its specific gravity relative to water.

Q4: How accurate is this calculation?
A: The calculation is theoretically accurate for static conditions. Actual system pressure may vary due to friction losses and dynamic effects.

Q5: When should I use this calculation?
A: Use for pump selection, system design, pressure vessel sizing, and verifying system pressure requirements.