1. What is Ft Per Sec To Gpm Conversion?

The Ft Per Sec To Gpm conversion calculates flow rate in gallons per minute from fluid velocity in feet per second and pipe diameter in inches. This is essential for hydraulic calculations in plumbing, irrigation, and fluid systems.

2. How Does the Calculator Work?

The calculator uses the flow rate conversion formula:

Where:

• \( ft/s \) — Fluid velocity in feet per second
• \( d \) — Pipe diameter in inches
• \( 0.408 \) — Conversion constant

Explanation: The formula converts velocity and cross-sectional area to volumetric flow rate, accounting for unit conversions between feet, inches, and gallons.

3. Importance of Flow Rate Conversion

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

4. Using the Calculator

Tips: Enter velocity in feet per second and diameter in inches. Both values must be positive numbers. The calculator provides flow rate in gallons per minute (GPM).

5. Frequently Asked Questions (FAQ)

Q1: What is the significance of the 0.408 constant?
A: The constant 0.408 converts square inches and feet per second to gallons per minute, accounting for unit conversions and fluid properties.

Q2: Can this formula be used for any fluid?
A: This formula works well for water and similar density fluids. For significantly different densities, additional adjustments may be needed.

Q3: What are typical velocity ranges in piping systems?
A: Typical velocities range from 2-8 ft/s for water systems, with higher velocities potentially causing erosion and noise issues.

Q4: How does pipe diameter affect flow rate?
A: Flow rate increases with the square of diameter, meaning doubling the diameter quadruples the flow rate at the same velocity.

Q5: Is this formula accurate for non-circular pipes?
A: This formula is specifically for circular pipes. For non-circular conduits, equivalent diameter calculations are needed.