| Feature | International Code (e.g., ASME, API) | Shell DEP | | :--- | :--- | :--- | | | Consensus standard | Proprietary company standard | | Stringency | Minimum legal/industry baseline | Higher, risk-based requirements | | Corrosion Allowance | Often 1.5 – 3 mm | Typically 3 – 6 mm (depending on service) | | Non-Destructive Testing (NDT) | Random spot checks may suffice | 100% radiography on critical welds | | Material Impact Testing | -29°C often acceptable | -46°C or lower for many services | | Documentation | Standard MTRs | Full traceability + VDDR + 3rd party witness |
Conversely, those who treat DEPs as "suggestions" find themselves in dispute resolution, facing back-charges, or removed from Shell’s approved vendor list. shell dep standards
In a world of aging infrastructure and heightened environmental scrutiny, the precision embedded in Shell DEPs is a roadmap to operational excellence. Whether you are designing a subsea manifold or a refinery flare system, the question is never if you should follow DEPs—only how meticulously . | Discipline | Key DEP Number | Title | | :--- | :--- | :--- | | Process | DEP 80.00.00.10 | Process Flow and Engineering Schematics | | Mechanical (Rotating) | DEP 32.21.00.10 | Centrifugal Pumps | | Mechanical (Static) | DEP 31.21.00.10 | Pressure Vessels | | Piping | DEP 34.00.00.10 | Piping Design | | Materials | DEP 30.10.00.10 | Material Selection for Corrosive Environments | | Electrical | DEP 37.10.00.10 | Electrical Installations in Hazardous Areas | | HSSE | DEP 30.00.00.10 | HSSE in Design and Construction | | Feature | International Code (e