Water PSI to Velocity Calculator

Water Velocity Formula:

\[ V = \sqrt{\frac{2 \times P}{\rho}} \]

Water Velocity (m/s):

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1. What is a Water PSI to Velocity Calculator?

Definition: This calculator estimates the velocity of water flowing from a pressurized system based on the water pressure in PSI and water density.

Purpose: It helps engineers, plumbers, and fluid dynamics professionals determine water flow velocity for system design and analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V = \sqrt{\frac{2 \times P}{\rho}} \]

Where:

\( V \) — Water velocity (meters per second)
\( P \) — Water pressure (Pascals)
\( \rho \) — Water density (kg/m³, default 1000)

Explanation: The calculator first converts PSI to Pascals (1 PSI = 6894.76 Pa), then applies the Bernoulli principle to calculate velocity.

3. Importance of Water Velocity Calculation

Details: Proper velocity estimation ensures efficient system design, prevents pipe erosion, and helps in selecting appropriate pipe sizes.

4. Using the Calculator

Tips: Enter the water pressure in PSI and water density (default 1000 kg/m³ for pure water). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert PSI to Pascals?
A: The formula uses SI units, and Pascals are the standard pressure unit in the metric system.

Q2: What's the typical water density?
A: Pure water at 4°C is 1000 kg/m³. This decreases slightly with temperature increase.

Q3: Does this account for friction losses?
A: No, this is theoretical maximum velocity. Actual velocity will be lower due to friction and other losses.

Q4: What's a safe water velocity for pipes?
A: Typically 1.5-2.4 m/s for residential, up to 3 m/s for commercial systems to prevent erosion.

Q5: Can I use this for other liquids?
A: Yes, but you must input the correct density for the specific liquid.