For the inspection, please be aware some of customers that they will ask their inspection company to attend all the tests which will be done to the valves especially the hydrostatic tests. As a professional manufacturer, we should supply all documents likely materials test report, hydraulic pressure testing report and so on. And the pressure testing report will be made according to API 598 if the valves are designed according to ANSI/API standard. The testing standard indicates the leakages level for different valves. The testing includes backseat Test, shell test, low-pressure closure test and high-pressure closure test.
| API 598 Valve Inspection and Testing.pdf |
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