Recognized and Generally Accepted Good Engineering Practices (RAGAGEP)

Codeware/Recognized and Generally Accepted Good Engineering Practices (RAGAGEP)
Recognized and Generally Accepted Good Engineering Practices (RAGAGEP) 2017-05-27T09:11:10+00:00
INSPECT Implements Recognized and Generally Accepted Good Engineering Practices (RAGAGEP)

Example RAGAGEP ARE:

  • Using all the provisions from the most recent applicable consensus standard, the correct allowable stress and joint efficiency etc.
  • Considering all the loads acting on the equipment. In addition to pressure, these include static liquid head, weight, wind and seismic loads on the pressure vessel and its supports as well as (piping) loads on nozzle attachments.

  • Considering brittle fracture as a failure mode for carbon steel equipment using ASME VIII-1 paragraph UCS-66 or API 579 Part 3. This may, for example, affect equipment start-up and field hydrotest conditions.

  • Checking that pressure vessel flanges can accommodate piping loads and comply with ASME Interpretation BPV VIII-1-16-85.
  • Implemented in INSPECT.

These ARE NOT RAGAGEP:

  • Simplistic internal pressure formulae for calculating Tmin or ignoring the external pressure Tmin (a very involved calculation).

  • Nozzle Tmin’s arrived at by only considering ASME VIII-1 paragraph UG-45. Area replacement, proximity to other openings and more must be taken into account.

  • Black box computer reports with no way of verifying (auditing) the correctness of the calculations performed.

  • Using outdated versions of API RP 579/ASME FFS-1 for fitness-for service evaluations.