Understanding Spray Nozzles and Tip Color

Nozzles come in different sizes, angles, flow rates and types.  You need to understand these different options so that you can appropriately choose what nozzle to use for your situation.

There are twelve different designs.

color nozzle for backpack sprayersThe flow rate, is part of the tip number.  For example if you have a tip number of 06 it means that you get .6 gallons per minute rated at 40 psi.  In this example, the nozzle of 06 would be grey.

These different types provide different droplet sizes, spray angles, different pattern and different pressure flow.

spray pressure for backpack sprayersThis color coding system it to help you with a more accurate placement of product.  Generally speaking, a wide fan nozzle with a small opening with high pressure will result in smaller droplets – giving more coverage.

With smaller droplets, you do need to be cautious with wind factors as well.

Because you are carrying only 3 to 4 gallons for liquid in the tank, you want to make the most efficient use of you time and not be filling up your tank frequently.  The smaller the droplets, the wider the coverage, the more distance you can cover with each tank and less fatigue on you.

So if you want good coverage, you will need to break up the droplets as much as possible to cover more area.

Wind plays a big factor when spraying with smaller droplets as there is more chance of the product drifting with the wind, resulting is a less precise application and missing your intended target.

If you are spot spraying, then you will choose larger droplets with a more precise spray.  This will use a lot more liquid with the larger droplets and will provide less coverage (though more specific) and less drift.

air induction nozzle for a backpack sprayerAir Induction Nozzle

An air induction nozzle has holes on either side to allow air to flow into the nozzle chamber and mixes air with the spray solution.  It basically creates spray bubbles and provides less drift.

Air induction nozzles are very good at providing a uniform larger droplet that doesn’t drift.


backpack sprayer nozzlesTwin Orface Flat Fan Nozzle

This nozzle has two holes and each hole is half the size that it would typically be based on it’s color code.

We will be able to spray at two different angles with the volume of spray. It sprays at two different angles at the same time.  This is great to cover foliage.  As you walk it will spray ahead as well as behind as you continue walking.  You will be able to spray the plant at two different angles with a single pass of the sprayer.

It is going to produce very fine droplets which provides very good coverage.

This is an excellent choice for a backpack sprayer as you are getting great coverage, small amounts of product being used (less tank refilling) and less work for you.

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