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  1. David2007

    thermal deaerator

    For a thermal deaerator, the goal is to heat the water to its saturation temperature, which is the temperature at which the water will start to boil at the given pressure. This process is crucial for effective deaeration, as the solubility of gases in water decreases as the temperature...
  2. David2007

    How to Manage Pipe Support Lift-Off in Stress Analysis

    Thanks for the clarification.
  3. David2007

    How to Manage Pipe Support Lift-Off in Stress Analysis

    Thanks for your feedback, I agree with you that it’s not economic to use spring support for all lift-off cases, however my point was to not to ignore any lift off support without engineering justification, and the formula you have provided to calculate the distance between the first spring...
  4. David2007

    How to Manage Pipe Support Lift-Off in Stress Analysis

    Hi, I think, considering all responses, the solution is clear now, however I just add a few points perhaps it would be also helpful. As per B31.3, 319.2.3 In evaluating systems where supports may be active in some conditions and not others (e.g., pipes lifting off supports), this difference in...
  5. David2007

    PWHT per B31.3

    Hi, But the temperature for preheating depends on the material as per Table 331.1.1 ASME B31.3
  6. David2007

    What type of coupling to use to connect dn 600 schedule 10mm and dn 600 schedule 15 mm di pipe

    Hi, No need any coupling if it is a metallic pipe, the higher schedule needs to be tappered to the thiner thickness and welded.
  7. David2007

    A105 Valves in Low Temp Service - CSA Z662

    Hi, It depends on the thickness and the fluid category as it shows on the Fig.323.2.2A page 48 ASME B31.3 , if it its Category D Min.-48 is allowed without impact test for wall thickness less than 10mm.
  8. David2007

    HI, I need to install a 26" flan

    I think you can find such high rating flange in API 6A which is specifically subjected to the wellhead Christmas tree equipments.
  9. David2007

    ASMEB31.3 - Buckling

    I think the allowable deflection is indicated in the Piping Stress criteria for each project and then you can analyse the pipe with CAESAR software and make sure to not exceed the maximum deflection. This is also applies to pipe support span for vertical lines.

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