Transcription of API Standard 520 - Sizing, Selection, & Installation of ...
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API Standard 520 - Sizing, Selection, & Installation of ...
StandardSectionInquiry #QuestionReply520 part I7th - Jan. 2000 1: Is this a correct interpretation of Section in that the backpressure was specified to not exceed the allowable overpressure?Question 2: If my interpretation of is correct, would relief valve manufacturers be required to test their relief valves at 21% overpressure with 21% backpressure in order to offer a certified and ASME coded/stamped relief valve? My concern here is to clarify under what circumstances this section may be invoked if there is a restricted opportunity to take advantage of its benefits due to lack of capability from relief valve manufacturerReply 1: Yes.
Standard Section Inquiry # Question Reply 520 Part I 7th - Jan. 2000 3.3.3.1 520-I-01/03 Question 1: Is this a correct interpretation of Section 3.3.3.1.3 in that the …
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API Standard 520, Part 1, American Petroleum Institute, API Standard 520, Part 1 Sizing, Part, Sizing, Sizing, Selection, and Installation of Pressure, API STANDARD 520, PART 1—SIZING, Valve Standards, Standards, Standard, CAPRE User Guide, PROCESS SAFETY MANAGEMENT FOR PETROLEUM REFINERIES, API 520, CRYOGENIC VALVES