It would be useful to add the verification of the stresses during lifting when the equipment is inerted with nitrogen at 0.5 barg (or with another gas at another pressure). The temperature could be also selected (room or higher temperature). The e...

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...

Please add the possibility to design the attached nozzle. I regularly have this kind of model and the fatigue analysis is not possible in APV.

Please add the possibility to perform a fatigue analysis directly in ASME VII Div.1 without choosing Div.2. When I choose Div.2, all the calculations and the allowable stresses are of course different.

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 designing of tall structures, especially tall process columns, the use of DIN 18800 proved helpful. This must be notified though, that this standard is out of use, and has been superseded by EN 1993-1-6 for a while.Kindly please add this to...

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 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...

API650 tanks can only be calculated with ASCE, sometimes it is required EN norms for wind and seismic design