ENDURANCE TEST PROCEDURE    API 598 / ISO 5208     VALVE SIZE 4″ fullbore  CLASS 600 metal seated    (Vertical)
HOT TESTING RESULTS
21 2000 Clean service 350 degr C at 6 Bar air No failures ALLOWED (NO STANDARD)
22 400 Clean service 350 degr C at 25 Bar air No failures ALLOWED (NO STANDARD)
23 1000 Clean service 400 degr C at 6 Bar air No failures ALLOWED (NO STANDARD)
24 250 Clean service 400 degr C at 25 Bar air No failures ALLOWED (NO STANDARD)
Torque measurement after cooldown
25 1 Torque measurement at 10 bar diff.pressure 130 Nm Unknown
26 1 Torque measurement at 20 bar diff.pressure 175 Nm Unknown
27 1 Torque measurement at 30 bar diff.pressure 230 Nm Unknown
28 1 Torque measurement at 40 bar diff.pressure 290 Nm Unknown
29 1 Torque measurement at 50 bar diff.pressure 330 Nm Unknown
30 1 Torque measurement at 60 bar diff.pressure 440 Nm Unknown
31 1 Torque measurement at 70 bar diff.pressure 490 Nm Unknown
32 1 Torque measurement at 80 bar diff.pressure 610 Nm Unknown
33 1 Torque measurement at 90 bar diff.pressure 670 Nm Unknown
34 1 Torque measurement at 102 bar diff.pressure 700 Nm Unknown