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  • Users: edemarcos
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  1. edemarcos

    Nozzle design for FRP tanks

    Thanks to all for helps, but codes give general rules, nothing like WRC107. I believe to define allowable loads I shall perform a finite element analysis. best regards
  2. edemarcos

    Nozzle design for FRP tanks

    For steel vessel we refer to WRC107, but there is nothing for FRP tanks. I need to define allowable loads ( forces and moment ) acting on a nozzle. I will appreciate any suggestion and help. Manu thanks in advance.
  3. edemarcos

    Anyone knows french code CODETTI ?

    Please, I need some information about this code. I shall appreciate every information, note or link about this code and where I may found it. Many thanks in advance
  4. edemarcos

    ASCE 7-02 WIND ON PIPING

    Thanks for the answer. This value for G is valid for ASCE 7-02 also ?
  5. edemarcos

    ASCE 7-02 WIND ON PIPING

    I wish to know how to calculate wind gust factor for piping. All data in ASCE are for buildings, but not for piping. Many thank for any informations.
  6. edemarcos

    Metric bolts for ANSI flanges

    Thanks CRG. I have checked, and what you say is right : in the table named "Template for drilling class .. " B16.5 1996 gives hole and bolt size. The problem is that the bolt size is in inch units only. For design guideline I use ASME VIII div.1, but my customer requires to use metric bolts...
  7. edemarcos

    Metric bolts for ANSI flanges

    Sorry, but my problem is to use a metric bolt ( M20, M30 and so on ) with B16.5 Flange. For example what metric bolt I must use for DN24'' 150#. B16.5 gives only Bolt hole diameter and not Bolt size. From manufacturers catalogs I have 1-1/4'' ( quite 31.75 mm ), but from bolt tables I have M30...
  8. edemarcos

    Metric bolts for ANSI flanges

    Problem : Use metric bolt on ANSI flanges. There are reference codes or rules to have the exact change ? Many thanks in advance.
  9. edemarcos

    Does Anybody Have Bolting problems ?

    I need to use metric bolt on Ansi 150# 24'' flanged joint. B16.5 requires 1-1/4'' bolt ( O.D. = 31.75 mm ) There is a code o standard rule to select M30 or M33 ? Or I must perform a calculation according to ASME code ? ( A bolt with OD=32 mm does not exist ) Many thanks in advance
  10. edemarcos

    Lifting Lugs-design David Ricker

    Try PD5500:2300 appendix G
  11. edemarcos

    Distance of bolt to OD on reverse flange

    I need to check a reverse flange with stud-bolts. OD flange 813 mm Stud Bolts M39 OD 39 mm Bolt circumference diameter 749.3 mm Distance from the OD to bolt 12.35 mm I does not found any code ( ASME, BS, Eurocode ) that give me a rule to define the minimum distance between the bolt and the...
  12. edemarcos

    Problem : Tank lifting as per appendix J

    I refer to Par. J.3.8.3 of API650 The required safety factor of 4 is referred to Tensile strength or Yield Strength of material. Why I must double the load acting on a lug ? If a customer require 1.5 or 1.25 I may assume this value or I must assume 2 ? Many thanks in advance
  13. edemarcos

    CHINA exception to the ASME PRESSURE VESSEL CODE DIV. 1 & DIV. 2

    I am intersted to buy english version of China codes. Someone could help me ? many thanks in advance.
  14. edemarcos

    Piping Stress analysis & Flanged Joints

    Often, when I perform a stress analysis of pipe system ( B31.1 or B31.3 ) I have that at the flanged joints I have a lower than allowable stress. If I calculate the equivalent pressure Pe at the flanged joint location I have the ( Pd+Pe )> Prating. Due to the fact the ASME B31.1 and 3 do not...
  15. edemarcos

    Tank Lifting ( appendix J )

    I refer to Par. J.3.8.3 of API650 The required safety factor of 4 is referred to Tensile strength or Yield Strength of material. Why I must double the load acting on a lug ? If a customer require 1.5 or 1.25 I may assume this value or I must assume 2 ? Many thanks in advance
  16. edemarcos

    Flange calculation as per ASME VIII div.1

    My problem is if I must consider the flange thk corroded or not. Many thanks for Your help
  17. edemarcos

    Equivalent pressure for bolted joint

    Please, I need to know how to calculate the equivalent pressure acting on bolted joint due to an external bending moment and axial load. Many thanks in advance.
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