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  1. Fedefff

    Grease Injection Head PR1 or PR2 API 6A 21th

    Hi: I am verifying a GIH conform to API 6A standard. I dont understand when I must use each performance requirement PR1 or PR2. Due to the standard doesn't classifies this type of equipment, in chapter 14 it ressembles a crossover and indicates a cycle requirement for each PR level. Can anyone...
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