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Controlled safety valves in power plants in accordance with European standards It is interesting to note that the German wording “Gesteuerte Sicherheitsventile” has no English equivalent “Controlled Safety Valves” in the technical sense. When translated... more... |
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New developments with boiler safety valves to EN, AD/TRD or ASME In Europe safety valves may only be utilized in the future if they fulfill the pressure vessel directive (DGRL) 97/23 EG. For that purpose they are classified into category IV in accordance with... more... |
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Challenges in designing API safety relief valves The development of a new series of API safety relief valves is only possible following extensive investigation into fluid flows. This paper describes how a new method of "Flowforce... more... |
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Entwicklung von Groß-Sicherheitsventilen mit besonderen Anforderungen Anwendung der Kennfeldmeßtechnik von: Dr.-Ing. Armin Schnettler und Dipl.-Ing. Thomas Diehl Inhalt 1. Einleitung: Die Entwicklung von Groß-Sicherheitsventilen 2. Besondere Anforderungen 3.... more... |
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Main steam safety valve with „controlled blow-off of steam" in accordance with ASME Sec.III, NC-7512 In 1986, the NRC issued the Information Notice (IN) 86-05 „Main Steam Safety Valve test failures and ring setting adjustments". Shortly after this IN was issued, the Code was revised to... more... |
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The modern API-safety valve series, designed in accordance with the latest trends At the development of the new series of API- Safety Relief Valves extensive investigations of the fluid-flow were done with modern measurement technology for the recording of the function, the... more... |