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  1. ddR17

    Calculation of Stem Packing drag force on API 6A Gate Valve

    Mathew, Have you found out about the stem packing drag force yet? Would you share your findings, please? I would like to learn too. Usually, the stem packing drag is insignificant compared with gate/seat drag force, however, I am working a 5"-15K valve and I want to be sure that the value is...

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