the high pressure low flow aeroponic impingement nozzle thread

[oxanaca]

calling all engineer/tinkerer types

hello im wondering if theres anyone out there who has made their own impingement
or wide full cone nozzles before. and were able to get high root hair.

i have decided this is something i will need to do as there are no quality nozzles
at a reasonable price. that i have been made aware of. biocontrol nozzles are pitiful ive tried 8 or them and
the pattern each nozzle produces is extremely unique. some of them shoot a 2 foot stream in a random direction.

i think the problem with these could be solved by replacing the shitty molded pin apparatus with a stainless steel
hook. but since there all about margins and dont care if there product is shitty or not, looks like im going to
be making my own.

i have access to a table saw, wood lathe, drill press, planner, arc welder and tons of other small tools.

ive already purchased 0.016" drill bits. and a 3/4 inch rod made of acetal plastic.

aeroponic equiptment that i own are a 20gallon 150psi tank, a 4.5 gallon 150psi thermal expansion tank. a rothenberger rp50 hydrostatic test pump.
an rodi system, 2 watts p60 pressure regulators, about 10 solenoids. and more john guest than anyone visiting this thread and that is a challenge

 

[oxanaca]

here are my ideas

the nozzles will have a 1/8 inch npt thread i say this because than i can utilize the cheapest push fitting john guest makes
the 1/4" stem x 1/8" npt male instead of a 1/4" npt female X 1/4 push fit and only costs 48Cents to connect to the tee on the manifold

https://www.freshwatersystems.com/p-2375-stem-adapter-nptf-14-x-18-nptf.aspx

while playing with one of the biocontrol nozzles i acciddently broke one of the posts on the impingement apparatus.
while super glueing it back( you cant super glue acetal) i accidently gotsuper glue in the hole. this worried me at first
however this turned out to be a good thing though as i found out im able todrill a cleaner hole than biocontrols.

my plan on the misting side of the nozzle is to bend stainless steel weldingrod at a 180 degree loop and stick one end into a hole drilled into the nozzlebody and have the other end suspended above the 0.016" hole. i couldshine a laser thru the hole to make sure i had good contact with my impingementpin.

the things that confuse me are how what gap distance is best between my pin andmy orfice and why.
also im confused on what effects the diameter of my inpingement has on thequality and misting angle.
i wonder if i were to make the tip of my pin either convex or concave if thatwould improve improve the quality of my mist and coverage.

they would look like this only they would have a female thread and my goal isto have the majority of the mist going sideways if this is physically possible
http://www.bete.com/products/pj.html

 

[oxanaca]

i also tried the red teffen cloud top nozzles. these produce a beautifully shaped cone spray pattern, unfortunately
when pointed down they only cover a diameter 6 inches across according to my measuring tape.

the nozzles i purchased included a ball and spring check valve. does any one know where i can puchase these at a good price.
or even a bad price im just interested in them

 

[oxanaca]

hey fatman if your out there lurking, pm me

 

[oxanaca]

alright came up with a pretty crazy idea last night. what if i could skip
the nozzle bodys and most of the john guest and just directly drill holes in my pipe
and than sort of build a bracket that would slip onto the pipe on both sides next to the nozzle
and provide arms which would lead to an impingement pin that i would adjust manualy to provide the perfect pattern
i wouldnt use a flexible tubing like pex but something more solid. if that exists
ill come back later with some drawings and a better description.

 

[oxanaca]

this is like my public notebook

i just did some research and i found that 1/4 inch schedule 80 pvc has an id of 0.282 and 0.54
this is much more volume that a 1/4 inch pex which is 0.177, i also wouldnt be able to connect with john guest
to the pvc as the od isnt a standard size so ill just keep on thinking

 

[Alex Wayne]

Hey O xacana.What kind of nozzles did you end up using for your hp system. I have done hours and hours of internet search and not found a decent mister that could deliver 50 micron size at 100 psi range..The brass ones that are sold on mist cooling sites have much higher lower cut off pressure (around 200 psi) .I reckon the only misters on the market we true aero growers can use are the bio nozzles or the tefeb ones with red caps right?