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  1. Vladimir Mescerjakov

    Difference between X65QO and X65Q SMLS pipes

    I am the contractor/supplier. Is there a project materials line pipe specification available from the client / person specifying the pipe? - only full specification is SMLS X65QO PSL 2 API 5L (appendix J edition 44) and geometrical specification of required positions. The order is very...
  2. Vladimir Mescerjakov

    Difference between X65QO and X65Q SMLS pipes

    @LittleInch Thank you very much! You are right, I do not know what I (and the project engineer) really need, due to little knowledge of the application requirements and how those application requirements correspond with API 5L requirements/specifications. We already had couple of...
  3. Vladimir Mescerjakov

    Difference between X65QO and X65Q SMLS pipes

    Hello! Project engineer demands SMLS API 5L X65QO PSL2 (appendix J edition 44) delivered to the site, but all the suppliers have in stock SMLS API 5L X65Q PSL2 with dimensional tolerances as per API 5L tables 10+11. Can someone please help me to understand what is the actual difference between...
  4. Vladimir Mescerjakov

    Coating for Bolts

    Xylan 1070 is the default standard coating for Blue FLUOROPOLYMER (Xylan) coating. Which is basically same thing as just specifying Xylan. Coming from a bolting manufacturers background - never heard of HDG before Xylan, to be honest, I do not believe PTFE will stick on HDG... Standard process...
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