Hi,
I'm doing an automatic irrigation project with Arduino. I have it connected to a solenoid valve with M 3/4'' threading to connect pipes to it. I need to connect it to a 16mm pipe, so I went online to search for an 16mm to 3/4'' F connector but the only one I found was this, which the product listing says is for underfloor heating. Can I connect PVC plastic pipes and the solenoid valve to it? Thank you.
That's a question better suited for a plumbing forum.
I would avoid PVC in an irrigation system, it's better suited for wastewater.
show the picture of what you have and link to valve and the pipes you have
This is the valve and these are the pipes. I don't have anything physically yet because I need to make sure I'm buying the right thing.
You can look through all of these and find what you want hopefully.
Ron
One of the ends needs to be for 16mm pipe
IMO what you want to buy is overkill, sound like you need standard garden hose connection system https://www.amazon.it/Connettori-Giardino-Connettore-Irrigazione-Autolavaggio/dp/B08T1HCFDG/ref=mp_s_a_1_45?crid=CA0E9XTDULQD&keywords=3%2F4+16mm&pscroll=1&qid=1664903227&sprefix=3%2F4+16mm%2Caps%2C86&sr=8-45&wIndexMainSlot=47
Yeah but I don't know if that fits the requirements, I searched for something that explicitly states it's 3/4'' F on one end and 16mm pipe on the other. If what I found works, then I'm gonna keep it since I need to guarantee it's the right piece.
It's not really pipe, it's tubing and as @killzone_kid suggests a garden hose fitting might work. On the other hand, it's used in drip irrigation systems and there might be a fitting more appropriate if you check out some drip irrigation sites.
That’s what is says in “ Informazioni su questo articolo”
I'll check out drip irrigation websites and the links provided. Thank you for the help
As your question has nothing to do with Arduino so far as I can tell I've moved it to general discussion.
Please consider posting plumbing questions elsewhere, or if you must post here then consider one of the general discussion sections of the forum.
Thank you.
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In the US, you'd look for something like a "3/4inch MPT (Male Pipe Thread) to 5/8inch barb adapter." Perhaps like https://www.lowes.com/pd/LASCO-1-2-in-x-3-4-in-Dia-Adapter-Plastic-Coil-Fitting/5002096973
(of course, since "pipe size" and actual diameter seem to be only slightly related, you may have to do some sampling to find the right one.)
(In any case "PVC Pipe" to "Poltyethylene irrigation tubing" should have standard adapters, and PE tubing has both some "stretch" and some compresssability (with a hose clamp), so exact size on the barb might not be needed.)
I would avoid PVC in an irrigation system
That's an interesting statement. Nearly all of the irrigation systems (yard-sized) that I've seen are PVC. Although they also seem to specialize in "let's glue everything together so that any repairs or replacements will be as difficult and expensive as possible." 
Well, yes and no. My yard irrigation system uses PVC pipes with removable compression fittings at each sprinkler so they can be repaired. The white PVC pipes must be buried because they allow enough sun light to pass so algae can grow inside the pipes. Or, like some of mine, must be regularly cleaned of green slime.
Really? Because all the ones that I've seen are Polyethylene or some other food safe plastic. Including the one that OP mislabeled as PVC.
I think most water pipes that use pvc are approved by the National Sanitation Foundation for safe use with potable water. Regular pvc contains bpa which causes a number of problems, health wise..
While BPA was a concern a while back, PVC also has pressure issues and degrades in direct sunlight.
You're probably thinking of flexible PVC. The rigid PVC I've seen in irrigation setups does not contain BPA. ( https://www.plasticstoday.com/inconvenient-truth-about-pvc )
The soft PVC doesn't seem to have BPA, either, but is typically made with phthalates which also have a bad reputation.
(This is in the US. I dunno about other countries.)
(Still, PVC irrigation pipe is not recommended/allowed for drinking water.)
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