1. What is the PSI GPM Flow Rate Calculator?

The PSI GPM Flow Rate Calculator calculates the flow rate in gallons per minute (GPM) based on pressure (PSI), flow coefficient (C_v), and specific gravity (SG). This calculation is essential for fluid dynamics, plumbing, and engineering applications.

2. How Does the Calculator Work?

The calculator uses the flow rate formula:

Where:

• \( GPM \) — Flow rate in gallons per minute
• \( PSI \) — Pressure in pounds per square inch
• \( C_v \) — Flow coefficient (unitless)
• \( SG \) — Specific gravity (unitless)

Explanation: The formula calculates the volumetric flow rate of a fluid through a valve or pipe based on pressure differential and fluid properties.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate calculation is crucial for system design, pump selection, valve sizing, and ensuring proper fluid transport in various engineering and industrial applications.

4. Using the Calculator

Tips: Enter pressure in PSI, flow coefficient (C_v), and specific gravity. All values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the flow coefficient (C_v)?
A: C_v is a dimensionless number that represents the flow capacity of a valve at a pressure drop of 1 PSI.

Q2: What is specific gravity (SG)?
A: Specific gravity is the ratio of the density of a substance to the density of water at 4°C. For water, SG = 1.0.

Q3: When is this calculation most accurate?
A: This calculation is most accurate for turbulent flow conditions and Newtonian fluids under standard temperature and pressure conditions.

Q4: Are there limitations to this formula?
A: The formula assumes ideal conditions and may need adjustment for viscous fluids, non-Newtonian fluids, or extreme temperature/pressure conditions.

Q5: What industries use this calculation?
A: This calculation is used in plumbing, HVAC, chemical processing, water treatment, oil and gas, and various manufacturing industries.