The allowable pressure of flanges as per EN1092-1 can be defined by formulas or by table. In the past AutoPipeVessel was giving the table allowable pressure. In the new version, it's the calculation with the allowable stress of the material. It wo...

In the case of sketch f) of table 4, the factor C can rise to 0.45 if s > 3 s1. Nowadays, there is no way to get C = 0.45 with the models of flat heads offered by Autopipe Vessel.

Add an option to override the selected bolt area. This can be helpful when non standard neck-down bolt is used.

Add compressive stress calculation according to EN13445 16.14.8 instead of PD5500 when the calculation code is EN. Allow calculation to be selected manually. Also provide control on factors relevant to calculation such as Cx, Cbx, Q, Tolerance cla...

When API650 is not suitable for a vertical tank, calculation should be done with API620

This option is only available when floating head heat exchanger is calculated, for normal vessels it is not possible to use a crown (hemispherical) head welded direct into a flange without knuckle or straight flange.

In the case of horizontal vessels, it must be possible to lock both sadles in order to carry out a correct calculation under transport conditions (taking into account longitudinal acceleration on both sadles).

It should be possible to impose a weld bead dimension in the "brackets and lifting accessories" masks. This value is set at 0.7 x the minimum thickness of the shell or wear plate. In the case of large thicknesses, this results in an unfeasible wel...

Greece is a country with high seismic behaviour. Many industrial projects are on going in Greece, it would be beneficial to add Greek seismic code.

A summary table will be presented in the main user interface which will list the components (like shell, head, nozzle, cone body flange etc.) along with the corresponding calculated stresses, allowable stresses, calculated minimum required thickne...