Pressure washer nozzle size guide

Pressure Washer Nozzle Size Chart

Choosing the right nozzle size for your pressure washer is crucial for achieving optimal cleaning performance. A properly sized nozzle ensures the correct balance between water flow (LPM) and pressure (BAR), helping to maximize cleaning efficiency while preventing damage to your machine.

Using a nozzle that is too small can create excessive pressure, potentially damaging your equipment. Conversely, an oversized nozzle reduces pressure, making cleaning less effective. Finding the perfect fit enhances performance, prolongs the life of your pressure washer, and saves water and energy.

Use this table to find the correct nozzle size for your pressure washer based on its flow rate (LPM) and maximum pressure (BAR). Simply match your machine's flow rate and pressure to the corresponding nozzle size (measured in orifice diameter, in mm).

Flow Rate (LPM)	Pressure (BAR)	Orifice Size (mm)
5	70	2.0
5	100	2.5
5	150	3.0
6	100	2.5
6	150	3.0
6	180	3.5
7	150	3.5
7	200	4.0
8	150	3.5
8	180	4.0
8	200	4.5
9	150	4.0
9	200	4.5
9	250	5.0
10	150	4.5
10	200	5.0
10	250	5.5
12	150	4.5
12	200	5.0
12	250	5.5
15	200	5.5
15	250	6.0
15	300	6.5
21	200	6.0
21	250	6.5
21	300	7.0

Explanation of the Table

Flow Rate (LPM): The amount of water your pressure washer delivers per minute.
Pressure (BAR): The pressure at which your machine operates, which influences the cleaning power.
Orifice Size (mm): The size of the nozzle opening that determines the flow of water and the cleaning pressure.

This table helps you identify the best nozzle size based on the unique combination of flow rate and pressure for your machine.

Types of Pressure Washer Nozzles

As mentioned, different spray angles are available, each suited for specific tasks:

0° (Red): Focused, high-pressure spray for tough stains.
15° (Yellow): Moderate pressure for stubborn dirt and grime.
25° (Green): Versatile nozzle for general-purpose cleaning.
40° (White): Low-pressure nozzle for delicate surfaces.
Soap (Black): Low-pressure nozzle for applying soap or detergent.
Turbo Nozzle - Rotary turbo nozzles used for tough stains, typically used on patios and some roofs.

Flow Rate (LPM)	Pressure (BAR)	Orifice Size (mm)
5	70	2.0
5	100	2.5
5	150	3.0
6	100	2.5
6	150	3.0
6	180	3.5
7	150	3.5
7	200	4.0
8	150	3.5
8	180	4.0
8	200	4.5
9	150	4.0
9	200	4.5
9	250	5.0
10	150	4.5
10	200	5.0
10	250	5.5
12	150	4.5
12	200	5.0
12	250	5.5
15	200	5.5
15	250	6.0
15	300	6.5
21	200	6.0
21	250	6.5
21	300	7.0

Flow Rate (LPM)	Pressure (BAR)	Orifice Size (mm)
5	70	2.0
5	100	2.5
5	150	3.0
6	100	2.5
6	150	3.0
6	180	3.5
7	150	3.5
7	200	4.0
8	150	3.5
8	180	4.0
8	200	4.5
9	150	4.0
9	200	4.5
9	250	5.0
10	150	4.5
10	200	5.0
10	250	5.5
12	150	4.5
12	200	5.0
12	250	5.5
15	200	5.5
15	250	6.0
15	300	6.5
21	200	6.0
21	250	6.5
21	300	7.0

Flow Rate (LPM)	Pressure (BAR)	Orifice Size (mm)
5	70	2.0
5	100	2.5
5	150	3.0
6	100	2.5
6	150	3.0
6	180	3.5
7	150	3.5
7	200	4.0
8	150	3.5
8	180	4.0
8	200	4.5
9	150	4.0
9	200	4.5
9	250	5.0
10	150	4.5
10	200	5.0
10	250	5.5
12	150	4.5
12	200	5.0
12	250	5.5
15	200	5.5
15	250	6.0
15	300	6.5
21	200	6.0
21	250	6.5
21	300	7.0