Static Pressure Equipment (SPE) Expert Systems

NEXUS offers the following expert systems for Static Pressure Equipment (SPE):

  • The SPE expert system contains all necessary functionality to manage pressure equipment risk assessment, inspection enactment and dashboarding. For more information, see SPE Expert System.

  • The SPE Plus expert system contains the SPE configuration and adds on a semi-quantitative Risk Based Inspection Methodology that integrates with the SPE AIGs and enhances the assessment of equipment probability of failure. For more information, see SPE Plus Expert System.

  • The API 581 expert system incorporates the SPE and SPE Plus expert systems and provides a fully compliant API 581 assessment tool for analysis of equipment risk and inspection planning. The API 581 expert system also contains the SPE++ asset types. For more information, see API 581 Expert System.

The following table shows the differences among the various methodologies supported by the expert systems for Static Pressure Equipment:

Methodology
Level of Assessment
PoF Approach
CoF Approach
Qualitative 
(SPE Expert System)
Semi-Quantitative 
(SPE Plus Expert System)
Quantitative 
(API 581 Expert System)
Qualitative 
(SPE, SPE Plus Expert System)
Quantitative 
(API 581 Expert System)
SPE (level 0)
Qualitative
✓
✓
SPE+ (level 0+)
Semi-Quantitative
✓
✓
SPE++ (level 0++)
Semi-Quantitative
✓
✓
API 581 (level 1)
Quantitative
✓
✓