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Why are allowable stresses in the WRC calculation under AD 2000 so low? Analysis of the reasons that lead to having low admissible loads in the calculation of localized WRC loads in the AD 2000 context Thread calculation according to EN14359 Clause 5.5.6 The thread calculation procedure allows to determine the minimum length of thread engagement for sustaining compressive stresses and the minimum length of thread engagement for sustaining shear stresses How to design supports for stacked equipments The support of a vessel or an exchanger could also be subject to the stresses of overlying elements, as in the case of stacked exchangers. In this article we will see how to take this into account, so as to carry out adequate sizing. An error in the calculation of the pressure stress evaluation at the edge of the reinforcing pad, in the WRC validation of the supports attachments, has been corrected Version 2025.0 introduces a bug fix in the WRC calculation, in particular in the evaluation of the stresses at the edge of the reinforcement pad of supports and attachments. As a result, the stresses at that point could now be higher than those calculated previously. Understanding and solving validation warnings Understand how to follow-up to a validation warning, a non-blocking message that often arises during the validation process of a component. Erection of vertical vessels Erection of vertical vessels External actions for the vessel support calculation It is possible to define various actions when checking the vessel's support Using the Usage Factor function to calculate the percentage of component utilization How to perform a quantitative analysis on pressure parts with the Usage Factor function The item properties window A recap of all the options and settings available under the "Item properties" window, to define a vessel or heat exchanger Maximum Allowable Working Pressure (MAWP) and hydrostatic test pressure calculation In this technical study we analyze the impact that the value of the maximum allowable pressure has on the verification of an appliance in hydraulic test conditions How to validate an attachment (nozzle or support) according to WRC 107, WRC 537 o WRC 297 How to validate an attachment (nozzle or support) according to WRC 107, WRC 537 o WRC 297 Version 2019.3, WRC module updates We've updated the WRC module in version 2019.3; in this article we take a look at what's changed. Expansion joints An overview of expansion joints and their use in the calculation of fixed plate heat exchangers Considerations on the verification of saddles according to the Zick method This article expresses our position regarding the dimensions b and b1 in the calculation of saddles according to the Zick method Updates to simplified fatigue assessment in Clause 17 according to EN 13445-3 2014, Amendment 5 An overview of the fatigue calculation changes introduced in Amendment 5 to EN 13445-3 2014 Edition