Api 570 open book exam - Study guides, Class notes & Summaries

A Hydrotest is conducted on an underground line as a substitute for the external inspection. The test pressure is 200 Psig. At the end of the test, the pressure must be at least - API 570 9.8.6 190 Psig. Determine the maximum allowed pressure for a Class 300 flange that has a design temperature of 950 °F. The flange material is ASTM A217 Gr. C12 - B16.5 Table 1.1-1 375 Psig. An 8 NPS pipe is being replaced with A106 gr. B material. The pipe retirement thickness (Tmin) is 0.218" and the ...