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  1. crueltobekind

    Leaking Plug Valve

    Thanks a lot for the replies guys, this has been a great learning experience, I know that this valve will always leak somewhat, I was just hoping to reduce it. I have heard that even though its a equal percentage valve, at very low flow rates, it behaves as a linear valve( not confirmed). I have...
  2. crueltobekind

    Leaking Plug Valve

    hey thanks for the reply. It is a plug valve. Here are the specs for it. http://www.herrera.unt.edu.ar/controldeprocesos/Tema_3/Ch2500.pdf
  3. crueltobekind

    Leaking Plug Valve

    I am stuck with this problem, and could really use some tips. I am trying to fix a double seated 3" plug valve. the valve is passing when it should be fully closed. the positioners show the valve is closed, but as this is a double seated valve, it seems that the one of the plugs is not making...
  4. crueltobekind

    Cooling tower De-Icing problems

    Thanks a lot Doug. yea i couldn't really find much in the way of solutions either, all we do is reverse the fan every couple of hours.
  5. crueltobekind

    Cooling tower De-Icing problems

    thanks
  6. crueltobekind

    Overhead Crane Foundation

    alberta,canada
  7. crueltobekind

    Cooling tower De-Icing problems

    its an open cooling tower
  8. crueltobekind

    Overhead Crane Foundation

    Revisiting this again. is there a specific code regarding bolting of the footing for over head cranes, or cranes in general?
  9. crueltobekind

    Cooling tower De-Icing problems

    Currently, the only system for de-icing is the reverse the fan for a while. is there other methods of reducing/avoiding ice buildup on the baffles?
  10. crueltobekind

    hydrotesting for threaded pipes

    does threaded piping need to be hydrotested? ive been told that hydrotesting is only required when there are welds involved. however, i think it should still be required for threaded connections. im not sure if these connections will be seal welded. i think thats left up to the pipefitters ...
  11. crueltobekind

    Overhead Crane Foundation

    Hello, Currently we have a overhead crane at our site. its sitting on pretty thin slabs. now im working on extending the crane's runway, but while doing that. we will need to get rid of the current slabs, and install new foundation work. i checked the geo data, and calculated the approx area...
  12. crueltobekind

    Pd Rotery Screw Pump pressure vs flow

    Alright so i learned something new, might be basic knowledge for most. but was new for me. Pd pumps are fixed volume, so the flow is directly related to the RPM, it is completely separate from pressure. PD pumps produce only enough pressure that is needed to overcome restrictions in the...
  13. crueltobekind

    Pd Rotery Screw Pump pressure vs flow

    Hello guys, I've been struggling with the problem for a while now.hoping you guys can shed some light on the subject for me. so at the place where i work, there is a PD screw pump. now i am trying to figure out the flow rate for the fluid passing through this pump. i know the RPM, of the motor...
  14. crueltobekind

    Flow

    well. the fluid at the top has higher potential energy than fluid on bottom. the fluid on the bottom does might have more pressure. but the energy, in terms of gravitational potential energy is less than fluid on the top. E=mgh - the fluid on the bottom will have a lower height that fluid on...

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