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  1. industrialsparky

    Fluid Power Hydraulic press ??

    Thanks for posting up the image. I dont understand how the oil travels where it goes though the valves. I have never seen valve numbers 13, 7, 8, 3, 4 or 9 before. my course only cover the very basics. So when oil go in one of these valves, where does it go when the valve is actuated?? cheers...
  2. industrialsparky

    Fluid Power Hydraulic press ??

    Hello, I'm still new at understanding hydraulics, and where I am working right now, my intro course to it is not helping me much (im an industrial electrical apprentice). So I was wondering, if someone would be able to explain the diagram for me (highlighting on the diagram would help alot- but...
  3. industrialsparky

    ext/ret a cylinder without a DVC

    thanks! yea we uses the terms normally passing and non passing becuase its too confusing the other way. we also found another way to may the cylinder ext/ret with only one compnant... a pressure reducing valve. the only problem was, we had to lower our system pressure and do the demo quickly...
  4. industrialsparky

    ext/ret a cylinder without a DVC

    yes there are alot of similarities in the theory but for me, applying the theory to a wiring diagram is much eaiser then to a hydraulic one. right now we really dont cover DC theory either. mainly Ac because that is the most common in the indusrty. i think we need a little more time in the...
  5. industrialsparky

    ext/ret a cylinder without a DVC

    oh okay i get it, thanks alot. its just like an intro to hydraulics course. were learning alot of metering in and out, regeneration, counter blance differece between pressure control and flow control valves and some other stuff. im not fully understanding the course though. it's a very fast...
  6. industrialsparky

    ext/ret a cylinder without a DVC

    its a two to one cylinder so it would stay extended i guess. do you have any ideas? i have spent a few hrs trying to figure out something but so far thats the only one i thought would work the componants i have are : sequence valve, reducing valve, 2 needle valves, 1 flow control valve and two...
  7. industrialsparky

    ext/ret a cylinder without a DVC

    i was thinking the amount that you restrict the flow back to tank or how much you open the needle valve
  8. industrialsparky

    ext/ret a cylinder without a DVC

    i have to extend and retract a cylinder (and i must be able to control it) with out the use of a DVC this can be done using 1, 2 or 4 componants. i was just wondering if someone could give me an opinion on whether or not the circuit i have come up with will work or if i am on the right track. i...

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