1. What is the Nozzle Size Equation?

The nozzle size equation calculates the optimal orifice size for a pressure washer nozzle based on flow rate and pressure. Proper nozzle sizing ensures efficient cleaning performance and protects your pressure washer pump.

2. How Does the Calculator Work?

The calculator uses the nozzle size equation:

Where:

• \( \text{size} \) — Orifice size (in thousandths of an inch)
• \( \text{gpm} \) — Flow rate in gallons per minute
• \( \text{psi} \) — Pressure in pounds per square inch
• 1450 — Conversion constant

Explanation: The equation balances flow rate and pressure to determine the ideal nozzle opening size for optimal performance.

3. Importance of Nozzle Size Calculation

Details: Correct nozzle sizing is crucial for maintaining proper pressure washer performance, preventing pump damage, and achieving optimal cleaning results.

4. Using the Calculator

Tips: Enter flow rate in gpm and pressure in psi. All values must be valid (greater than 0). The result is the orifice size in thousandths of an inch.

5. Frequently Asked Questions (FAQ)

Q1: Why is nozzle size important?
A: Proper nozzle size ensures correct pressure and flow balance, protects your pump, and provides optimal cleaning performance.

Q2: What happens if I use the wrong size nozzle?
A: Too small: increases pressure risking pump damage. Too large: reduces pressure and cleaning effectiveness.

Q3: How do I measure nozzle size?
A: Nozzle size is typically marked on the nozzle itself in thousandths of an inch (e.g., "025" = 0.025 inches).

Q4: Does water temperature affect nozzle size?
A: Hot water pressure washers may require slightly different sizing due to water density changes.

Q5: Can I use this for all pressure washer types?
A: This calculation works for most standard pressure washers, but specialty applications may require adjustments.