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  • Users: cardin
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  1. cardin

    When is a pipe stress / expansion calcualtion needed

    Hi, I have someone here working on a 10 bar /190degC DN300 steam pipe loop. Total length is about 75m for the steamboiler and back. doesn He says that if he will mount the pipe in brackets with chains and makes all the connections flexible he doesn't need a stress or expansion analysis. I...
  2. cardin

    Flex analysis for piping

    I tried to find a clearer answer on when it is required to perform a Flex. analysis of piping? EN13480 sets some basic requirements,but it doesn't give a clear guideline for me. It is more or less open for interpretation i think. Any ideas on this?
  3. cardin

    Emergency switch machine room EN378

    I have a machineroom existing of 2 floors,(basicly 2 machine rooms). They are only connected by piping coming for one floor to the other through an open hole in the room. At this point there is no Emergency switch for any of the rooms only the compressors have their own switches. Both rooms...
  4. cardin

    Weld bead misalignment

    Is there anyone that can help me on this matter. I have a weld (pressure vessel long. seam)that has misaligned weld beads. I can't find anything on the allowable misalignment of weld beads. The have fusion and no fusion errors are found. Is there anyone that can help me on this question...
  5. cardin

    ASME B31.3

    In EN13480 there is a limitation on the use of pad reinforcement (fig. 8.3.6-1) on piping. I have a system that is 100bar and would like to know if ASME B31.3 knows of such a limitation? I tried to find more information on this in the ASME code but was unable to find this. I would therefore...
  6. cardin

    Exeeding pressure rating of flange

    Hello, I have a flange rated 150lbs that is welded into a vessel 19Bar (max 50degC). This flange has an allowable pressure of 19,5Bars @50degC. Now i would like to know if it is allowed to exeed the pressure rating with 3 bars (to 22 Bars) for a short period of time (say 8 hours),but no more...
  7. cardin

    Interpretation on EN13480-5 NDT

    Hello, I would like to know if someone can shine a light on the following. EN13480-5 indicates the amount of testing to be performed on piping. par 8.2.1 gives some guidelines on the amount of examination. I have a question on part B of this paragraph. "For piping in material groups 1.1, 1.2...
  8. cardin

    3rd party desing review according to ASME B31.3 and / or BPVC

    I have worked with PED (Pressure Equipment Directive) in Europe. Now i've recieved a question on desing review according to ASME B31.3. I'm not sure if this has been talked about before, but i would like to know what the restrictions / demands are on 3rd party control of the design. In PED the...
  9. cardin

    Material designations old steel types

    Hi, Does anyone have a tip on what material SsT45.3 can be compared With? Is there a site that has a good table for this you can recommend? Tried a Google search, but it doesn't seem to find this material.
  10. cardin

    Welding engineer books

    Hi, I am looking for a list of books that are needed for the IWE (IWT) course. I can only find a few possible books, but i would like to buy a whole package complete so i can start study on my own before i will sign myself in to a IWE (IWT) course, i prefer IWE but if a IWE list is available i...
  11. cardin

    meaning of the b in ASME VIII div 2

    Hello, I would like to know what the letter "b" means in ASME VIII div.2 §4.12.11.1 Nomenclature. It says "unit Width per cross section", but this is not clear for me what do they mean With this. For me it looks like that they mean the cross sectional area, but i'm sure this i wrong since...
  12. cardin

    hole in flange side

    I'm using a 5"-150 B16.5 flange. We want to make a threaded hole in the side of the flange to allow us to place a bleedvalve on the flange. I understand that if we make a hole in a 16.5 type flange this flange seizes to be a B16.5 flange. Is there a code to what we can refer that allows us to...
  13. cardin

    right mouse button problem acad 14 in win XP

    I'm using autocad 14 on a windows XP computer (laptop). The problem is that I can't use the right mouse button to enter a command. EX. If I want to fillet an part and want to exit the command (with the right mouse button) nothing happens. So I have to push the escape button. If I do this I will...

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