This article discusses the various ways of solving the puzzle of bolted joint assembly. In 2001, The PCC-1-2000 Guidelines for Pressure Boundary Bolted Flange Joint Assembly presented with knowledge and practices specific to the assembly of bolted flange joints. The puzzle solution that came from this box was the most definitive to date and allowed those dealing with bolted joints to assemble the variables by methods that had been used successfully for many years by many people. This document is helping people across industry not only to assemble bolted flange joints, but also to establish joint integrity programs, procedures, and best practices. PCC-1-2010 shifts the emphasis to gasket stress and gasket type and provides instruction and information pertinent to bolt torque values. The 2010 document contains, for instance, a whole section on bolt stress—the unit load that should be put on the bolts—and includes tables as well.
Solving the Puzzle of Bolted Joints
Edward Hayman is a retired bolting service contractor who specialized in training and consulting on bolted joint assembly.
Clyde Neely is a Fellow of Becht Engineering Co. Inc. in St. Albans, W.Va. Both are members of the ASME Pressure Technology Post Construction Committee, as well as the Subcommittee on Flange Joint Assembly, which Neely chairs.
Hayman, E., and Neely, C. (June 1, 2011). "Solving the Puzzle of Bolted Joints." ASME. Mechanical Engineering. June 2011; 133(06): 48–52. https://doi.org/10.1115/1.2011-JUN-5
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