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  1. Jake-Designer

    Resources and Specifications for Surface Treatment of Plastics

    Greetings, I am working on a design where I plan to paint machined plastic pieces. The paint will be several different colors as I plan to paint the entire assembly and paint various decals and reference designators. I am working on material selection now and am having a tough time finding...
  2. Jake-Designer

    Force against a gate in a closed conduit

    Thanks for the replies. I think I understand now. In the case where the gate is in the down position with no flow I was trying to use the hydrostatic force applied on the top of the gate neglecting the hydrostatic force on the bottom of that gate. As far as for net forces the only forces to...
  3. Jake-Designer

    Force against a gate in a closed conduit

    IRstuff I want to make sure I understand all the forces involved and ensure the moment I apply (which I am designing a torsion spring but I just left it as a general moment for simplicity in this discussion) is enough to overcome them when it is in the "down" position. BigInch Can you clarify...
  4. Jake-Designer

    Force against a gate in a closed conduit

    Thank you for the replies. Here is a sketch of the problem. In both cases the pipe is completely filled with water. You can see the first image with the gate upright and a boost pump provides flow causing the gate to rotate about the hinge. The second image is when the boost pump is shut down...
  5. Jake-Designer

    Force against a gate in a closed conduit

    I am working on a design problem where I have a pipe filled with water. Within a pipe there is a gate connected to a hinge. I am trying to gain a better understanding of two situations. The first situation is when a boost pump moves the fluid what is the force against the gate, I believe I can...

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