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  • Users: MarkCA
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  1. MarkCA

    Modifying a Part Description without Up-Revving

    I checked an Inventor 2024 part and drawing into Vault and released it only to then realize I'd forgotten to add a Reference Drawing Number in the AES Model Properties. Is there some way for me to correct this without creating an entirely new revision? Thanks, Mark
  2. MarkCA

    Design Text Pressure Vessel for Pressure Tests

    I've been tasked with designing a pressure vessel that we can use to run pressure tests on our equipment. I've been looking for a text that covers this topic, but all the ones I've seen on Amazon seem to focus on Pressure Vessels and Boilers for Refineries. Are there any that are specific to...
  3. MarkCA

    Drag Coefficient for a Hollow Cylinder

    Can anyone tell me the drag coefficient for a hollow cylinder through a fluid? The fluid in question is viscous (50+ cP for the purposes of calculations) and incompressible with a density of 1800 kg/m^3. The cylinder is 30.5cm long with an inner diameter of 7cm and outer diameter of 8.9cm...
  4. MarkCA

    API 6D Check Valve Trim

    Does anyone know the "standard" trim for API 6D check valves? I'm used to B31.3 specs where we typically specify API Trim #8 but I'm being told that is not the case for API 6D valves. Can anyone shed some light on this? (This is for non-corrosive, sweet service.)
  5. MarkCA

    BSI EN 12560-6 vs B16.20

    I have a project that is wanting Kammprofile gaskets for RTJ flanges manufactured in accordance with BSI EN12560-6 but I dont' have access at work to BSI standards and we are required to specify to ASME/API/etc. standards, particularly since this if for a plant in the States. So, I have a...
  6. MarkCA

    ANSI/ASME vs. API Valve Ratings

    I have a project that is asking me about the equivalence between the two but since I always specify valves based upon the ASME standards for pressure and temperature, flange bolting and the like (even if the valve itself is also governed by an API stanard), so I don't have much experience with...
  7. MarkCA

    Pigging Ball Valves

    I'm working on a job where the client wants to use ball valves in a pipeline but prefers soft seats, i.e. PTFE. My boss on the other hand is unsure whether or not this is allowable when this line is going to be pigged. He's worried the pig will damage the seats. Now I recall a conversation...

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