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solenoid recommendation

Discussion in 'Electronic Basics' started by Matt Warnock, Nov 21, 2003.

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  1. Matt Warnock

    Matt Warnock Guest

    I'm looking for a solenoid i can interface with my HC11. The solenoid needs
    to be closed to stop water from flowing out. THen when i want it on it lets
    liquid flow down, just pulled by gravity, and stop after a given period of
    time. The valve would have liquid at room temperature but some might have
    alcohol flowing through it so it would need to stand up to that.

    I would like to know what kind of solenoid i should use? I'm using tubes
    with a diameter of about 1/2". I've never controlled a solenoid but i've
    used stepper motors powered by a FET so i can't see it being that difficult.

    Please let me know what brand/type you recommend!
     
  2. Baphomet

    Baphomet Guest

    I think you could use a washing machine solenoid. You could probably get one
    from any appliance repair shop...or at least they could order one for you.
    This solenoid works off the line voltage so depending upon whatever the heck
    an HC11 is, you might have to use an interface of some sort.

    There are lower voltage solenoids that are used in chemical process control,
    but the washing machine type would probably be more accessible for your
    purposes.
     
  3. Matt Warnock

    Matt Warnock Guest

    the HC11 is a very command microcontroller. It runs on 5v. I'm looking for
    a solenoid that runs on 5vDC or 12vDC maybe.
     
  4. Baphomet

    Baphomet Guest

    The closest I could come is this 12V. D.C. solenoid
    http://www.usplastic.com/catalog/ca...SPlastic&category_name=Solenoid+Valves&Page=1 .
    You'll have to get in touch with them because the website offers little to
    no information.

    Here's an outfit that custom designs solenoids to your specification
    http://www.ledex.com/df/LXGOG/index.html . You didn't mention the quantity
    required so I don't know whether this would be practical.

    snip...snip...snip...
     
  5. Tracy Nelson

    Tracy Nelson Guest

    My, how beer bongs have changed....
     
  6. David Harmon

    David Harmon Guest

    In my opinion, you should use a solid state relay module to drive a 110V
    solenoid valve. The convenience of the wide availability of 110V valves
    justifies it. If you find a suitable 5V or 12V valve, you still need at
    least a transistor driver circuit, the MCU pin will not drive it directly.
    So, you haven't saved much that way.

    If your app is battery powered, disregard.
     
  7. Luhan Monat

    Luhan Monat Guest

    Hi,

    If you want a real cheapie, buy an electric watering valve from Home
    Depot (or other such place), about $12. Only trouble with these is they
    run on 24volts.
     
  8. Matt Warnock

    Matt Warnock Guest

    rock! Someone know's what i'm doing! Close, try automatic bartender. I'm
    glad my EE degree is paying off.
     
  9. Matt Warnock

    Matt Warnock Guest

    I plan on using a powerfet to actually power the solenoid. I thought about
    using 110 but i dont know if i want that running around liquids unless its a
    washing machine solenoid like someone suggested.
     
  10. Ross Mac

    Ross Mac Guest

    You might try this link http://www.ryanherco.com/
    These guys have solenoids for all sorts of environments. There are several
    coil voltages available, but I would go 110vac....that way you don't need a
    power supply. I wouldn't worry about line voltage around liquids as long as
    you build it to code....good luck, Ross
     
  11. Matt Warnock

    Matt Warnock Guest

    I haven't worked with relay's to run 110vac devices. Any suggestions there?
    Do they run at low power or would i need a Fet to power the relay to turn on
    the solenoid? hehe that could get complicated.
     
  12. Ross Mac

    Ross Mac Guest

    I am not sure what the question is but I would think "hockey puck"
    here.....have a great one....Ross
     
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