Pressure Washer Orifice Size Calculator

Orifice Size Formula:

\[ \text{Orifice Size} = \frac{\sqrt{ \frac{GPM \times 231}{PSI} }}{0.052} \]

Orifice Size:

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1. What is Pressure Washer Orifice Size?

The orifice size in a pressure washer determines the flow rate and pressure output. It's a critical component that affects the cleaning performance and efficiency of the pressure washer system.

2. How Does the Calculator Work?

The calculator uses the orifice size formula:

\[ \text{Orifice Size} = \frac{\sqrt{ \frac{GPM \times 231}{PSI} }}{0.052} \]

Where:

\( GPM \) — Flow rate in gallons per minute
\( PSI \) — Pressure in pounds per square inch
231 — Conversion factor (cubic inches per gallon)
0.052 — Constant for orifice calculation

Explanation: The formula calculates the optimal orifice size based on the desired flow rate and pressure to achieve efficient pressure washer performance.

3. Importance of Orifice Size Calculation

Details: Proper orifice sizing is essential for maintaining the correct pressure and flow balance, ensuring optimal cleaning performance while preventing damage to the pressure washer components.

4. Using the Calculator

Tips: Enter the desired flow rate in GPM and pressure in PSI. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is orifice size important in pressure washers?
A: The orifice size controls the water flow and pressure output, directly affecting cleaning efficiency and equipment performance.

Q2: What happens if the orifice size is too large or too small?
A: Too large: pressure drops, cleaning efficiency decreases. Too small: pressure increases, may damage equipment and reduce flow rate.

Q3: How often should orifice size be checked?
A: Regular inspection is recommended, especially if you notice changes in pressure washer performance or after prolonged use.

Q4: Can I use this calculator for different pressure washer types?
A: Yes, the formula applies to most pressure washer systems, but always consult manufacturer specifications for specific applications.

Q5: What units are used for orifice size measurement?
A: Orifice size is typically measured in inches or millimeters, with this calculator providing results in inches.