Pressurized vessels are often legally required to be designed in accordance with the Pressure Equipment Directive 2014/68/EU (PED).
If a pressure vessel complies, it can be “CE marked”. It is against the law (in Europe) to apply the CE mark unless the relevant codes are followed.
The decision on whether compliance is legally binding is based on a number of (sometimes confusing) factors, including size, purpose and geographical location of the unit’s eventual home.
Manufacturer’s have a binding responsibility to inform clients of the legal position. Moreover, once informed, the legal responsibility is shared. One cannot pretend one did not realise compliance is required – that is no defence.
The directive governs the way in which manufacturers verify their designs are structurally safe. The directive does not instruct how; (that is a function of complex design software operated by clever engineers) but it verifies that the manufacturer has indeed taken into account the stress’s inherent in a pressurised vessel.
In short, the guidelines force the manufacturer and the client to take safe design seriously.
In practical terms, pressure vessels are categorized into to groups depending on volume and pressure. The higher the risk, the greater the requirement for verification. Verification ranges from “Internal production control” right through to full outside and independent inspections and verification by a classification society. It is the manufacturers responsibility to identify the appropriate category. (There are tables and charts to clarify this decision).
Guidelines related to the Pressure Equipment Directive 2014/68/EU (PED) can be downloaded here: http://ec.europa.eu/DocsRoom/documents/23181
The full directive can be downloaded here:
We make it easy for you. On receipt of any request for a pertinent special heat exchanger, the very first this we do is assess and report to the client.
You can rely on our expertise to help you comply with the law.