I was curious how slow you can actually turn a belt driven pressure washer pump without damage to it
Does anybody know the minimum rpm of a pump?
Because I’m going to try to make a misting fan
Thank you !!!
Get a 12 volt electric pump and buy fittings. I think a pressure washing pump would be overkill.
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Yeah it has to be like 1000-1500 psi to get maximum evaporation. But it’s really low gpm I think 
4 gallons an hour.
I was just wondering if there was any problem with running a pressure washer pump too slow i think they’re splash lubricated. 
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I think practically speaking, you’ll be much better off using a purpose-built pump.
For one thing, you’re going to be way overpowered for the task, wasting a lot of fuel. For a .25gpm @ 1500 psi pump, you only need about 1/4 hp. So you’d be much better off with an electric setup.
Second, I think even if lubrication wasn’t an issue, you’d have a big problem with pulsing. Each revolution of the pump would be so slow, that as the pistons push the water, it will come out in obnoxious bursts.
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I didn’t even know that it would pulsate at lower rpm. Lubrication was my main concern. I just bought a
Comet BXS 0615 E Misting Pump 6526.1001.00 electric motor direct driven. For like $90 shipped. From ebay
Here’s some context on what I’m trying to do. I have a 24 inch fan powered by a Honda motor. Putting out like 20 thousand cfm of air max so I’m testing out a misting ring option . It’s extremely hot in Florida where the air doesn’t even cool you off like it used to right now.
I already did some testing with a hydraulic paint sprayer and a bucket of water and it worked pretty good actually. The high pressure small nozzle was the key. But I’m trying to make it very compact on a pallet so it could be moved around with the loader or put in the back of a utility vehicle and aimed at me when I’m working. with its own water tank etc.
I’ve got a small Honda generator if I can’t plug it into the wall I guess.
I’m budgeting this whole project around $700 maximum. Since I already bought the fan like new for $150. Etc.
Trying to figure out ways to keep cool if I’m standing in one spot running a wood chipper or something. The fan alone just doesn’t cut it anymore I figured i would just try to power a small pressure washer pump with the same motor to make it really compact. But I just don’t think that is going to work. Thank you !
I’ll try my best to take some pictures eventually if I complete the project.
Have you considered an ice vest?
Evaporative cooling doesn’t work very well in humid environments, much more effective in arid climates like Arizona.
It’s weird when I tried it the first time I got the chills almost freezing. Compared to 100 degrees it really was just too much airflow over me I guess. The humidity is all over the place. It would only work good for certain situations. But who knows.
I really liked the idea of the cooling vest. Would have to have multiples to keep swapping out. Throughout the day.
I have a vest I never used.
how slow do you think you could possibly turn it with out making custom mounts so you can run likely custom pulleys?
