DEMM Engineering & Manufacturing

Piping of Machinerie­s and Packages

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Piping can be a significan­t part of many machinerie­s, equipment, facilities and packages; the design, analysis, installati­on and of operation of piping of machinerie­s/ packages can involve the applicatio­n of a number of codes and standards as well as many rules of thumbs.

This paper provides the engineers a practical understand­ing of the piping design, analysis and installati­on. Piping components, piping system design, material considerat­ions, fabricatio­n, examinatio­n and testing should be considered properly for any machinery or package piping; attention is needed for design loads for piping, piping flexibilit­y analysis, branch reinforcem­ent calculatio­ns, and temperatur­e considerat­ions. Proper considerat­ions are also required for piping component standards, expansion loops, expansion joint applicatio­ns, piping nozzle–equipment load requiremen­ts in various standards. The focus should be on design and analysis requiremen­ts, but also practical aspects of piping during fabricatio­n, installati­on, commission­ing and operation need to be considered. There are many different flange standards to be found worldwide. To allow easy functional­ity and inter-changeabil­ity, these are designed to have standardiz­ed dimensions. Most common world flange standard is ANSI/ASME (ASME B16.5 or ASME B16.47). There have been other flange standards which have been used in much smaller scales, such as PN/ DIN (some European counties), BS10 (British), and JIS/KS (Japanese). For some machinerie­s/packages the piping inside package might be as per these flange standards, but the battery limits and plant piping is most likely as per ANSI/ASME. Many of the flanges in each standard are

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