1. What is Pump Pressure?

Pump pressure is the force per unit area that a pump generates to move fluid through a system. It's determined by both the flow rate and the resistance in the system.

2. How Does the Calculator Work?

The calculator uses the pump pressure equation:

Where:

• \( Flow \) — Flow rate in gallons per minute (gpm)
• \( Resistance \) — System resistance factor

Explanation: The pressure increases with the square of the flow rate, meaning doubling the flow rate quadruples the pressure required.

3. Importance of Pump Pressure Calculation

Details: Accurate pressure calculation is crucial for proper pump selection, system design, and ensuring efficient operation while avoiding overpressure situations.

4. Using the Calculator

Tips: Enter flow rate in gpm and system resistance factor. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for flow and resistance?
A: Flow should be in gallons per minute (gpm) and resistance is a dimensionless factor specific to your system.

Q2: Why does pressure increase with the square of flow?
A: This relationship comes from the Bernoulli principle, where kinetic energy (related to velocity squared) converts to pressure energy.

Q3: How do I determine the resistance factor?
A: Resistance factor is determined by pipe size, length, fittings, and fluid properties. It's often calculated using hydraulic analysis.

Q4: Is this equation valid for all fluids?
A: This basic form works for water-like fluids. For viscous fluids, additional factors need to be considered.

Q5: What's a typical pressure range for centrifugal pumps?
A: Common centrifugal pumps typically operate between 20-100 psi, but specialized pumps can reach much higher pressures.