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  • Users: RR05
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  1. RR05

    API 607 Rev5

    Can anyone tell me how Rev 5 differs from Rev 4?
  2. RR05

    A351 CF8M vs SA351 CF8M

    What is the difference between A351 and SA351? Is there differences in casting material or a treatement after casting.
  3. RR05

    Seat Damage in Ball Valve

    I have had several ball valves fail because the seat "extrudes" when we close the valve on 150# saturated steam service. When closing the valve, the ball lip graps part of the seat and deforms seat, not letting valve close completly. Is this a condensate problem, P/T rating of seat material or...

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