1. What is the GPM from PSI Equation?

The GPM (gallons per minute) from PSI (pounds per square inch) equation calculates flow rate using the flow coefficient (CV) and the square root of the pressure differential. This is commonly used in fluid dynamics and engineering applications.

2. How Does the Calculator Work?

The calculator uses the flow rate equation:

Where:

• \( CV \) — Flow coefficient (unitless)
• \( PSI \) — Pressure differential (psi)

Explanation: The equation shows that flow rate is proportional to the square root of the pressure differential, scaled by the flow coefficient of the system.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate calculation is crucial for designing fluid systems, selecting appropriate valves and pipes, and ensuring proper system performance in various engineering applications.

4. Using the Calculator

Tips: Enter the flow coefficient (CV) and pressure (PSI) values. Both values must be positive numbers for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the flow coefficient (CV)?
A: CV is a dimensionless number that represents the flow capacity of a valve or system at a given pressure drop.

Q2: What are typical CV values?
A: CV values vary widely depending on the system, from less than 1 for small valves to thousands for large piping systems.

Q3: Does this equation work for all fluids?
A: This form is primarily for water. For other fluids, additional factors like specific gravity must be considered.

Q4: What are limitations of this equation?
A: It assumes turbulent flow and doesn't account for viscosity changes, temperature effects, or complex geometries.

Q5: How accurate is this calculation?
A: It provides a good estimate for many engineering purposes, but actual flow rates may vary based on system specifics.