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  1. INSP79

    Hemispheric cap surface area calculation

    Calculation depending on arc length & radius
  2. INSP79

    A105 studded pad nozzle

    Please judgment with reference: Is that acceptable to use A105 studded pad as nozzle direct welding to vessel shell material (a516 gr.70) ??
  3. INSP79

    spherical tank column calculation

    hello .. how can get code to recalculate the culomn calculation for sherical tank becouse i found 2.1 mm thickness reduction arround whole area with height of 800mm , so can not going to any repaing or replacing , i thought of doing recalculation to finding if that 2.1mm corroded column can...
  4. INSP79

    Rerating with lost document

    I have no data for LPG vessel in-service since 1981 , now it has metal loss corrosion , wanting to re-rating but have no data for anything of material & construction code . I sow in OSHA web site answered for this situation which says” assume lowest value of recalculation variables “ I ask if...
  5. INSP79

    Re rating with lost document of material

    I have no data for LPG vessel in-service since 1981 , now it has metal loss corrosion , wanting to re-rating but have no data for anything of material , construction code . I sow in OSHA web site answered for this situation which says” assume lowest value of recalculation variables “ I ask if...
  6. INSP79

    Temperature grades definitions

    Witch standard specify range of terms ‘lo temp’ or ‘ elevated temp. ‘ or ‘ hi temp. ‘ For example Low temp. From -50 to +20 °c
  7. INSP79

    Temperature grades definitions

    In ASTM or equivalent std. i see classification acc. To work temp. ( hi , low , elevated , room , moderated ) , so i want to know witch temp. Range specify these grades . Thank you
  8. INSP79

    std for autogas system design installation & test

    i have heavy new jobs for modelling vehicle in our town to dual work(lpg- petrol) please any one have standard iso 20766 full parts , as 1425 , or any equivalent std. , now i prepare quality management guide for installing inspection and test depending on UNECE324 R67-01 . but i sow it had very...
  9. INSP79

    electrical isolating or C.P

    i works inspecting jobs in cathodic protection to LPG pipe network erected in home group , i want reference assign to me which is the accepted value of electric isolating (Ohm) . where all reference refer to volt. criteria not Ohm
  10. INSP79

    lamination and stress study

    in service LPG tank 3000 m3 ,18 bar mawp, sa516 gr.70 , i found lamination in more 5 shells , after return to API 510 to see assessment , it forwarding me to API 579 which say (lamination is acceptable regardless of sizes except(1- in case of no working in hydrogen charging service, 2-locate the...
  11. INSP79

    LPG fuel vehicle

    thanks a lot for all who replied to me but i cant find [highlight #FCE94F]EN67[/highlight] , in web
  12. INSP79

    heat input & cooling rate

    Sorry but my question was in[u] reverse proportion between heat input and cooling rate, were all them should keep in lowest.!!!
  13. INSP79

    heat input & cooling rate

    in AWS and ASME sec IX says that if heat input increase ,the cooling rate decrease . my question how can i produce slow cooling rate to keep the weld material in perlite phase where it must increasing heat input to do that (by understanding from above reverse proportion
  14. INSP79

    LPG fuel vehicle

    i ask if i can see it in ISO, EN, BS ,because NFPA 58 not special for ( lpg fuel vehicle) its general safety requirement for gas piping in building or any site works with gas.
  15. INSP79

    LPG fuel vehicle

    i would like to do quality assurance jobs for (LPG FUEL SYS install in vehicle) , so i want the standards describing the specification of equipments , procedure of installation , testing and final inspection
  16. INSP79

    Allowable stress

    Thanks for all replies My material use to fabricate the vessel is En 10028-3 p355 NL1
  17. INSP79

    Allowable stress

    When you want to calculate the thickness in ASME SEC XIII DEV 2 , the value of allowable stress is ( ultimate tensile/ S. F), asking about value of ultimate tensile while choosing; Minimum, or maximum or actual product analysis???

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