Clauses supported by NextGen for the design and verification of unfired pressure vessels according to EN 13445.
| Clause | Description |
|---|---|
| 5 | Basic design criteria |
| 6 | Maximum allowed values of the nominal design stress for pressure parts |
| 7 | Shells under internal pressure |
| 8 | Shells under external pressure |
| 9 | Openings in shells |
| 10 | Flat ends |
| 11 | Flanges |
| 12 | Bolted domed ends |
| 13 | Heat Exchanger Tubesheets |
| 14 | Expansion bellows |
| 15 | Pressure vessels of rectangular section |
| 16 | Additional non-pressure loads |
| 17 | Simplified assessment of fatigue life |
| 18 | Detailed assessment of fatigue life |
| 19 | Creep design |
| 20 | Design rules for reinforced flat walls |
| 21 | Circular flat ends with radial reinforcement ribs |
| 22 | Static analysis of tall vertical vessels on skirts |
| Annex | Description |
|---|---|
| Annex E | Procedure for calculating the departure from the true circle of cylinders and cones |
| Annex F | Allowable external pressure for vessels outside circularity tolerance |
| Annex G | Alternative design rules for flanges and gasketed flange connections |
| Annex J | Alternative method for the design of heat exchanger tubesheets |
| Annex S | Extrapolation of the nominal design stress based on time-independent behaviour in the creep range |
When designing according to EN 13445, NextGen also supports the following verifications based on additional international standards: