Another random item from eBay's huge array of useful industrial components from the orient. This time it's a 12V DC solenoid operated water valve. This one has the bonus features of an easily removable filter screen and a one-way anti-backflow valve.
As with most of these components I'd suggest not using them in a mission-critical application or where failure could cause an expensive flood. But for prototyping and testing designs these common components are a good option.
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17 thoughts on “Inside a cheap ebay solenoid water valve.”
  1. Avataaar/Circle Created with python_avatars FontediCalore says:

    Thank you for the explanaion. Now I know why they don't work unless there's lots of pressure. I need to open and close a tap that has no pressure!

  2. Avataaar/Circle Created with python_avatars David Moran says:

    I use a lawn sprinkler valve to turn off all my water in the house until I need it. My water system leaks everywhere and I can't afford to replace it. So, rather than let the house be destroyed and my water bill go to extremes, I put the valve on my water intake. It has worked for several years, now.

  3. Avataaar/Circle Created with python_avatars rody goossens says:

    I am a heatpump technician work i whit so many different technical thing's looks a lot of what you do in the Dutch I like your video's

  4. Avataaar/Circle Created with python_avatars rody goossens says:

    Pressure difference will close the valve

  5. Avataaar/Circle Created with python_avatars mehogngroup says:

    meHOGn good performance

  6. Avataaar/Circle Created with python_avatars per simonsen says:

    Same princip used in refrigeration.

  7. Avataaar/Circle Created with python_avatars Vitor Madeira says:

    Excellent video.
    Do you know if those kind of valves can be used in a low pressure water system?

    I need to control the out of an IBC water tank and this might handy, but I'm afraid the water pressure would not be enough to make it fully operational.

    Thank you.

  8. Avataaar/Circle Created with python_avatars Johnny MaC says:

    When I lived in England, I had a few just like this. In the states, I can't find one at the same cost with US threads.

  9. Avataaar/Circle Created with python_avatars duh1100 says:

    water might push open and coil shuts off?

  10. Avataaar/Circle Created with python_avatars Gautom Bose says:

    You missed out on the "easy to remove and clean FIlter".

  11. Avataaar/Circle Created with python_avatars Benny Dela Cruz says:

    Does this water solenoid valve require water pressure to operate the closing and
    opening of the valve? Thanks

  12. Avataaar/Circle Created with python_avatars Sasha Nealand says:

    brilliant explaination

  13. Avataaar/Circle Created with python_avatars skhumbuzo cele says:

    Thank you big clive

  14. Avataaar/Circle Created with python_avatars Terk Franks says:

    Still watching… but did you mistake inlet for outlet… seems like the inlet would be before the shutoff mechanism and the clean out would be after the shut off mech and before the outlet… back to the video lol

  15. Avataaar/Circle Created with python_avatars Collin Hunter says:

    Did I miss something? Is it connected to the mains power through a power adapter? And how does it know when to go and stop. I'll have to watch again

  16. Avataaar/Circle Created with python_avatars Giorgos says:

    Is it reliable ? Should i trust it from ebay ? Or i will get a water leakage?

  17. Avataaar/Circle Created with python_avatars TOM TOM says:

    Thank You

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