This work describes the process of designing a pressure vessel for the pharmaceutical industry in compliance with the Pressure Equipment Directive and the use of German technical guideline AD 2000. The vessel consists of two chambers: product chamber, where the working pressure is from – 1 bar to 3,5 bar and heating chamber where the operating pressure is 8 bar. The maximum allowable temperature is 150 °C. First, the theoretical basics we need to know before we start constructing are presented. This is followed by a detailed and structured calculation of all the main components of the vessel. Standards that would suit the potential user are also given throughout. The minimum test pressure of the vessel is calculated, as well as the maximum test pressure with which the vessel can still be loaded. An example of calculating the capacity of a safety valve and a bursting disc for water and steam is also briefly presented. With this calculation, we found that the vessel withstands the intended operating conditions and that we achieve the required number of load cycles. A review of the utilization of all components in the assembly has also been carried out, with the help of which we can reduce the costs of production of such a vessel.
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