Can this RC hydraulic valve be scaled up to sustain industrial pressure ? or is it only usable for RC and small models?
https://www.youtube.com/watch?v=bAPtspQus60
https://hackaday.com/2019/08/28/finely-machined-valve-controls-miniature-rc-hydraulics/
google
"hydraulic injection injury"
thanks for the warning, ill keep that in mind
>"hydraulic injection injury"
I don't even need to search. Reading the term alone surfaces horrible, horrible images in my mind.
Unless you imagine the hydraulic fluid literally melting the flesh from your bones and having to deglove large portions of your skin to try and flush that shit away in the hope it won't reach any vital organs and kill you than you're not imagining hard enough. That's why you should never run your hand along any hydraulic pipe no matter how well they look because its the pinhole leaks that bite you
I love this crazy Finn.
And he did is all a solid by teaching:
this is someone's fetish
>this is someone's fetish
Having the blob fart out the paint got me a little hard
That's just a basic closed center valve... They already have been scaled up for industry for years. Also deadheading the pump like that is bad. No system relief either. If that was an actual pump and not some inefficient bullshit he threw together it would have popped a hose or grenaded the pump. What he needs there is an open center valve with a return to the reservoir. or a variable displacement pump with a signal circuit to destroke the pump so it doesn't pump when in neutral.
>Also deadheading the pump like that is bad
true but thats another topic
>That's just a basic closed center valve
but why don't industrial valves look like that ?
what the advantage of using a moving rod vs a rotary type valve ?
>what the advantage of using a moving rod vs a rotary type valve
Spool ("moving rod") valves are designed such that pressure is balanced between pushing and pulling on the rod. Because no net axial force is put on the valve, it takes almost no force to actually operate the valve. This is a really big deal when you're talking about valves that could potentially require hundreds or thousands of pounds of force to actuate if they needed to overcome system pressure. Much smaller, faster, and simpler operating mechanisms can be used on spool valves than most other types.
Additionally, spool valves also tend to keep constant volume within their passages. This is important when dealing with incompressible liquids, as you must otherwise ensure that there is always some way to move fluid out of spaces in the valve mechanism that change in volume.
Rotary valves seem to do the same, am i missing something ?
Never messed with a rotary valve like the one in op but i could imagine at higher pressures it would be much harder to seal and may snap into full flow once you crack the valve open and be harder to turn back to neutral. Maybe not though, its just a seat of the pants guess. Spools are easy enough to manufacture and require no internal seals as the metal to metal fit is close enough to stop the flow of oil.
I bet if you did enough looking around you would find some rotary valves made for some oddball application out there in industry somewhere.
Fun fact, pressure works on surface area. The smaller a valve is, the stronger it is, all other things being equal.
Try to figure out how to use that to your advantage.
basically, i need this valve to have a flow rate of 60l/m at ~60 bars