API 570 DATA SHEETS(DIMENSIONS)

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Author:
egf4201
ID:
285314
Filename:
API 570 DATA SHEETS(DIMENSIONS)
Updated:
2014-10-09 08:56:39
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API 570 DATA SHEETS DIMENSIONS
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API 570 DATA SHEETS(DIMENSIONS)
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  1. design- mill tolerance for rolled and welded pipe
    -0.010"
  2. NDE- maximum length of crack, or incomplete fusion allowed on a new weld
    0"
  3. flanges- typical flange finish
    125-250 micro-inch
  4. flanges- when mating flanges, the maximum amount of unparallel allowed (per diameter of flange in feet)
    1/16" per foot
  5. flanges- max offset for bolt-holes for mating flanges
    1/8"
  6. welding- maximum allowed size of open discontinuity in a bend test
    1/8"
  7. preheat zone- distance from toe of weld
    1"
  8. PWHT zone- distance from toe of weld
    1"
  9. NDE- minimum distance beyond the area to be examined to clean  a part when performing a MT examination
    1"
  10. NDE- minimum distance beyond the area to be examined to clean a part when performing a PT examination
    1"
  11. repairs- minmum radius of insert patch
    1"
  12. repairs- minimum radius of insert patch
    1"
  13. NDE- max diameter of CML exam point for lines < or equal to 10 nps
    2"
  14. NDE- max diameter of CML exam point for lines > 10 nps
    3"
  15. NDE- minimum lenght of spot RT
    6"
  16. welding- min length  to RT/UT when qualifying a welder with test coupon or 1st production weld
    6"
  17. welding- minimum lenght of RT when qualifying a welding operator with a test coupon
    • 6"
    •  
  18. corrosion- soil-to-air area- distance in air from interface
    6"
  19. corrosion- distance to dig when inspecting for soil-to-air corrosion
    6-12"
  20. NDE- distance of eye-to-part to count as a visual exam
    6-24"
  21. corrosion- soil-to-air area0 distance in soil from interface
    12"
  22. NDE- minimum upstream limit of intensive examination of injection point circuit
    12"
  23. PWHT- min overlap for PWHT when using multiple heats
    12"
  24. welding- minimum length of RT/UT when qualifying a welding operator on first production weld
    3'
  25. underground- minimum length of buried pipe to expose when excavating for inspection
    6-8'
  26. repairs- maximum size of fillet weld patch on pipe
    1/2 diameter
  27. circuits- minimum upstream limit of injection point circuit
    greater of 12" or 3 dia
  28. NDE- minimum downstream limit of intensive examination for injection point circuit 
    10 daimeters
  29. circuits- min downstream limit of injection point circuit
    • lesser of :
    • 1st direction change + 25', or
    • 2nd direction change.

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