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PFI ES16

2013 Edition, December 1, 2013

Complete Document

ACCESS HOLES, BOSSES AND PLUGS FOR RADIOGRAPHIC INSPECTION OF PIPE WELDS



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Product Details:

  • Revision: 2013 Edition, December 1, 2013
  • Published Date: December 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Pipe Fabrication Institute (PFI)
  • Page Count: 11
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This standard covers recommendations for access holes, bosses and plugs for the radiographic inspection of pipe butt welds where the radiographic source is located on the inside of the pipe. Radiographic access ports should not be used unless necessary. Since routine double-wall radiography is capable of making high-quality radiographs on pipe that is 5/8" inch thick or less and NPS 16" inch and smaller, radiographic access ports are unnecessary and should not be specified. When digital radiography will be used, greater thickness and larger sizes of pipe may be radiographed without resorting to access ports. Figures 1 through 7 are recommended for applications where temperatures are below the creep range. For RT bosses used in piping systems that may operate within the creep range, alternative bosses, as provided in Sections 6, 7 & 8 are recommended.