So for the Regulator, new AS1000M5, new Clippard EV-3-3. Ideally you would want the EV-2, 2-way but this will work, it just exhaust the co2 in the tubing when switched off,
I may be missing what you are saying --or there may be an error in this?
I think that you will find the EV-3-3 will be a three port (in,out and exhaust) but the exhaust will not be brought out in a way that I can see using it. EV-3O-3 will have the third port brought out as a small pipe on top. We can stick a common 10-32 screw in that port to stopper it. I am using a three port solenoid in the one I picture. If it doesn't have the "O" in the model number the exhaust comes out inside the plastic cover where I see no practical way to stop it. There may be a way but I've not found it?
Is the 3 volt one that is easy for you to find a power supply? I tend to like the 12 volt as they are more common for me to find at salvage shops.
Very good solenoid but they do come in a totally bewildering number of options!
For the stem, the nut can't be changed without removing the stem, so I would look at also changing the stem as it is not a big expense. Locally we are talking less than $10 US. Since the work is in getting the old stem out, perhaps not taking a chance on the old stem is not worth redoing the work?
EV-3-3 has exhaust on the top, through several small holes in the "cap". But the exhaust effect will probably do nothing/very little since we have check-valves too, which should only allow for exhausting of the co2 between the solenoid and check-valve. But in all practical sense, it works fine. It will never exhaust from inlet/tank side, just outlet.
As far as I understand it, a 3-way direct acting NC solenoid when powered the Inlet port opens to the Outlet and Exhaust/port 3 is blocked. When it's not powered, the Inlet is blocked, but the Exhaust/port 3 and Outlet stays open. Was that clearer? Not the best at explaining things in English.
Edit: I made a sketch up of what I mean, not the best MS-Paint artist but you get the idea
Red line represents the Co2
Flea-bay has several 3v supply, and I probably have some AC-DC supply lying around and use DC-DC converter to lower the voltage if its not 3v.
That's what I'm hoping with the DIN477. But if I know the business in this country correct (anything slightly out of the ordinary = +300% on price). I'm thinking I have to fork out between 30-40$ for the DIN477. But it will have to do, made huge savings on the build after all. So far no luck though, 3 places barley knew what it was.
Just a small sample observation. Think the AS1000m5 is a fine metering valve ..BUT being spoiled on the likes of Hoke Micromites I find them a bit coarse.. but consistent.
As a small experiment I ran 2 "in-line" and precision was much better...
Please note this trial didn't last very long as I found another Micromite to replace them..Deal too good to pass up, until Ifound it was metric but that is another story..
Just something to think about..They were cheap enough as you well know. bought a bag of 5 At the time and 10 M5 hose barbs..
Might be easier to find a Burkert Solenoid
10/32 "fits" but m5 is what the threads are..
So thats what the m5 in the part number stands for, pretty logical though but didn't think of it. So, Standard SMC AS1000 use 10-32 and I just happen to get the m5. Bah, need some extra press fittings then. Nice catch.
I'm a gear-nut when it comes to all my hobbies, so the AC1000 will probably just last me until I got some spare cash to use if I know myself
Nice to know it's a decent needle valve though. I'm gonna use it on a 55g anyways so the "coarse-ness" probably isn't gonna be a issue. But I don't think I would use it in say a Nano tank based on your description.