The Parts Of A Sprayer Explained (Video)

A farm sprayer is a fairly simple piece of equipment, but it does have some moving parts that you should know to make maintaining and using it easier.

I recently picked up a used three-point sprayer at a farm auction, which I was pleasantly surprised to find was in pretty good condition. I did have to replace a few parts, though.

While doing that, though, I realized that, for a fairly simple piece of equipment, a sprayer does include a handful of moving parts. And knowing what those parts are can make both maintenance and use a whole lot easier.

In the video above, we take a look at the following parts to a sprayer.


This is the most obvious part, of course, because it’s the bulk of a sprayer. In the tank, you put whatever material you plan to apply. This could be fertilizer, herbicide, a natural product or even just water.

Read more: Check out this video to learn how to calibrate a sprayer.


I call this “the bones of the operation.” It’s the structure upon which the tank is carried. On my sprayer, the carriage actually hooks to the three-point hitch, though you can find other models.

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You’ll see a few different kinds of sprayer pumps, including an electric one that runs off your vehicle. In the video, we look at a roller pump, which works off the tractor’s PTO. The pump serves to pump liquid from the bottom of your tank to the system.


The sprayer pump moves liquid up to the T, which is essentially collection of parts. Attached to the T, you’ll see:

  • pressure gauge
  • pressure regulator
  • bypass hose
  • on/off valve
  • diverter valve

Check out the video for a discussion of how this closed-loop system works, as well as a demonstration.

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You can find booms in a variety of designs for different agricultural demands. The boom on my sprayer will do about 10 feet width, which is right for my needs. It’s a few hoses, constructed in a T shape, that lead to fittings equipped with a nozzle and strainer. (Note: Various nozzles exist for different uses.)



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