The tabulation method provides a quick, standardized approach for sizing, based on: The or Nominal Pipe Size (NPS) . The internal diameter ( Dicap D sub i ) of the inlet bore.
Consider this case: A mid-sized valve manufacturer in Southeast Asia found a “free” EN 12516-1 PDF from 2001. They used it to design a series of gate valves for a German chemical plant. The valves passed initial testing but failed during a temperature cycle test. Why? The 2001 version used a lower safety factor on castings that was revised in 2015 after a major valve failure in a French refinery.
If you are using the standard for valve design, it covers these critical areas: En 12516-1 Pdf Free Download
Industrial valve design requires strict adherence to safety standards to ensure reliability under pressure. Among the most critical European standards for this purpose is , which provides a tabulation method for determining the wall thickness of steel valve shells.
The assigned and corresponding strength characteristics. 3. Valve Classes: Standard, Special, and Limited They used it to design a series of
: You can buy the full, authorized document from BSI Knowledge , DIN Media , or the AFNOR Store. 📖 Key Technical Content in EN 12516-1
: Designers identify the required minimum wall thickness by referring to standardized tables based on material groups and pressure/temperature (p/t) ratings. Regulatory Context : It supports the essential requirements of the EU Pressure Equipment Directive (PED) The 2001 version used a lower safety factor
Standards are regularly revised. EN 12516-1 has seen multiple amendments. A free PDF from a file-sharing site may be: