House water pressure vs. spray nozzle rating


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Old 05-02-20, 07:30 PM
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House water pressure vs. spray nozzle rating

I was planning to use Rainbird spray nozzles in my irrigation system but I'm not sure the nozzles will handle the house water pressure of 55 psi. From what I can see the nozzles I want to use will cover a maximum of 10 feet @ 30 psi. What can I expect to happen if I use it with 55 psi? Will it increase the distance of the spray or what? Please reply....thanks, buzcar
 

Last edited by buzcar; 05-02-20 at 07:34 PM. Reason: to clarify question
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Old 05-02-20, 07:37 PM
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Rainbird makes a pressure regulating spray head to deal with this. Are you able to replace the spray heads or just the nozzles?
 
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Old 05-02-20, 07:43 PM
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I was hoping to just replace the nozzles but the spray heads are an option. Do yo happen to know what Rainbird series regulates the pressure?
 
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Old 05-02-20, 08:22 PM
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https://www.rainbird.com/products/18...es-spray-heads

I thought my pressure regulator would satisfy the same issue, however I neglected to consider the head pressure due to the different elevations of my front and back yards. I also used the plastic inline pressure regulator near the valves but they kept failing. I've had the 1800 heads for a couple of years and so far so good.
 
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Old 05-02-20, 11:28 PM
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Will it increase the distance of the spray or what?
Trick question?

If you have higher pressure naturally your going to have more water and longer spray distances!
 
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Old 05-03-20, 04:56 AM
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Depending on the head I've seen high pressure either extend or shorten the range. Regular spray heads sometimes have a shorter range. Too high a pressure can cause the droplets to be smaller so they don't have the mass to travel further and in extreme cases the water mists and is easily blown around by the wind.
 
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Old 05-03-20, 07:17 PM
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Are you on city water or on a well ... .with a bladder tank that runs from 40# to 50# or similar ? Do you see your sprinkler heads throw out water that decreases...and back up again...and again and again......
 
 

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