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Recent content by ilkerdburhan

  1. I

    Classification of Swing Check Valve Opening Type per API 6D Clause 4.4

    Thank you so much!
  2. I

    Classification of Swing Check Valve Opening Type per API 6D Clause 4.4

    Thank you, Disc is circular. I attached a diagram of showing position of disc on full open position. I'm trying to define it because as I see, nominal valve size marking requirements change on body and nameplate according to Table 12 and Table 13 on API6D. Also, I am not sure if It should be...
  3. I

    Classification of Swing Check Valve Opening Type per API 6D Clause 4.4

    Hello, I'm relatively new to this topic, so please excuse me if my question seems basic — I just want to make sure I understand the standard correctly. We have a swing check valve designed in accordance with API 6D. I’m trying to correctly classify the valve under clause 4.4 (Valve Opening...
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    Hardfacing overlay welding - Procedure qualification

    Thank you so much! :)
  5. I

    Hardfacing overlay welding - Procedure qualification

    Accordingto Table QW-255.1 "Classification" is essential variable. As I understand classification changes from ERCCoCr-A to ERCCoCr-E. That means procedure qualification is required, am I right? However for welder qualification "Classification" is not an essential variable according to Table...
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    Hardfacing overlay welding - Procedure qualification

    I have a WPQR for GMAW overlay welding, filler mat AWS/ASME SFA - 5.21 ERCCoCr-A and base material WCB. and I have welder qualifications of this WPQR. However, customer needs filler material to be AWS/ASME SFA - 5.21 ERCCoCr-E. If every essetial variables are same and only change is the filler...
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