Cleaning a pressure vessel

  1. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    The tank gave up ,hydro test failed at about 6 bar
    So I have to cut off the plate the motor and the pump from the tank , and in future I will buy a new tank for it
     
  2. cheb Forum Supporter

    Messages:
    298
    Location:
    Outer Hebrides
    How did it fail? Rust holes scabbing open, splitting, exploding?
     
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  3. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    An hole near the caster ,I have not intention to repair the hole because I'm sure that will fail again
    There was some rust in that spot and it fail there
    Nothing of dramatic the pressure went down and I saw the water coming out ,nothi no did explode
     
    slim_boy_fat likes this.
  4. brightspark

    brightspark Member

    Messages:
    26,339
    Location:
    yarm
    so none of the usual rubbish about exploding tanks that's bantered about the internet of doom and gloom
     
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  5. cheb Forum Supporter

    Messages:
    298
    Location:
    Outer Hebrides
    Thanks.

    That's why I asked.
     
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  6. Fintray

    Fintray Forum Supporter

    Messages:
    769
    Location:
    Aberdeenshire (UK)
    During a hydro test I would be very surprised if it did "explode" as water is used so there isn't the bang that goes with a gas test (failure that is).
     
    Last edited: Jul 13, 2019
    dai, rtbcomp, Memmeddu and 1 other person like this.
  7. carbon

    carbon Member

    Messages:
    1,117
    Location:
    S. Glos. U.K
    Water doesn’t compress
     
  8. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    But you can pressurise a vessel using it as an hydraulic fluid as happens with oil on the escavators and other big machine with hydraulic cylinders
    In this case using an high pressure pomp I forced the water to get into the tank
     
  9. carbon

    carbon Member

    Messages:
    1,117
    Location:
    S. Glos. U.K
    Got cut short on the previous post as it’s not possible to compress water there is no rapid expansion in the event of a leak or rupture more of a controlled event.
     
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  10. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    Yep i miss understood sorry for that ,my bad
     
  11. carbon

    carbon Member

    Messages:
    1,117
    Location:
    S. Glos. U.K
    It’s not your fault it’s where I am at moment, somethings seem to happen suddenly here, I put my phone down and must accidentally post a reply
     
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  12. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    Anyway it's past now , it's all ok
     
  13. gaz1

    gaz1 Member

    Messages:
    8,014
    Location:
    westyorkshire
    this test it with water in it



    this one is without water in it actual real cctv video footage of an air tank explosion




    and another






    this is why we say dont use water tanks or air tanks thats been full of water for a long time
     
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  14. Memmeddu

    Memmeddu Member

    Messages:
    838
    Location:
    Italia Sardegna
    Yep that's the reason because I wanted to do the hydro-test also if I did at home it worked pretty well
     
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