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  • Users: dursosono
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  1. dursosono

    welder qualification ASME-IX

    A welder have 3 qualifications as follow (all as per ASME-IX) 1. 6G Uphill, GTAW full, DCSP, pipe 2" Sch. 80 SA312-TP304L, Filler ER70S-G, single V butt weld 2. 6G uphill, GTAW (root 3.0 mm thk) & SMAW (fill-cap 4.11 mm thk), pipe SA106-B Sch 40, filler ER70S-G & E7016, single V butt weld 3. 6G...
  2. dursosono

    Manhole flange from plate ASTM A36

    API 650 11th Ed. Section 4-6 state that nozzle flange shall comply with ANSI B16.5. Is this statement also required for manhole flange? If "yes" its mean, plate ASTM A36 could not be used as manhole flange & manhole cover? Thanks for any advice
  3. dursosono

    The number of tension test for ASTM A252

    ASTM A252 Para 16.1 state that one tension test shall be made for each 200 pipe. If those pipes (200 joints) made from two or more raw material/ coil (each coil has one heat number), it is permissible to perform only one tension test? Or it shall be made tension test for each raw material/ heat...
  4. dursosono

    choosing shape of head

    What kind of consideration when choosing either semi ellipsoidal or thorisperical head for a pressure vessel? It would be use as Knoct Out Drum. Also the advantage & disadvantage of them. This matter is regardless cost or fabrication schedule...
  5. dursosono

    test gauge range for hydrostatic test

    Did ASME B31.3 have a restriction of test gauge range for hydrostatic test as well ASME VIII-1 Para UG-120?
  6. dursosono

    wps/pqr API 1104 for dissimilar material

    I have two qualified wps/pqr API 1104 which comprise API 5L-B to API 5L-B and API 5L-X52 to API 5L-X52. I would like to joining API 5L-B to API 5L-X52. May I to used these wps/pqr without requalified? the others...
  7. dursosono

    Repair pressure vessel using fiber

    I have pressure vessel that constructed under ASME VIII-1. It was found leakage due to internal corrosion on shell. May I to patching this hole with fiber material? If "yes", which Standard/ Code that permitted this method? If have reviewed API 510 and NBIC-23 but have found nothing about it.
  8. dursosono

    ASTM A283-C or A36?

    For storage crude oil (medium corrosive) which material should be use ASTM A283-C or A36? As per API 650 both are may to used. My question is what considerations to choosing or determining one of listed materials above? Which material have susceptible corrosion A283-C or A36?
  9. dursosono

    NDE for Joint Category D

    I am looking for any statement in ASME VIII-1 regarding the requirements of NDE for joint category D (nozzle neck attached on shell by fillet weld). UW-2(a)(1)(5) only state that joint Category D shall be full penetration and there is no requirement to performed NDE such as MT/PT/UT. Can...
  10. dursosono

    single lap welded on bottom plate

    Hi all, Api 650 Section 3.1.3.5 describes that max overlap is 1" for single lap and 2" for double lap joint. I am not clear with this statement why single lap shall not exceed 1"?
  11. dursosono

    Addional RT per B31.4

    Is there any statement in B31.4 that cite the two additional joint shall be inspected when the result of a joint girth weld reveal "rejected"? This is a flowline with hydrocarbon services. RT was performed by 10% randomly.
  12. dursosono

    Compressibility factor for water

    Dear All, I need the value of compressibility factor for water with restricted pressure 1000 psig or below. Thanks for any valuable replay
  13. dursosono

    max thickness for new plate for patching bottom plate

    Api 653 restricted that max thk for new plate for patching within critical area is 1/4". Does this requirement shall be applied in out of critical area? If no, what the max thk shall be used?
  14. dursosono

    JIS SS400 adoption

    Does material plate jis ss400 has been adopted by BPVC latest edition? If no, may I to used it as pressure part as per UG-10?
  15. dursosono

    Coupling attachment on long seam shell

    Dear All, Is it permitted by Code to welding a coupling 1" in centre line of long seam shell? Is there any additional requirement (except ndt) for this condition? Thanks for any advice
  16. dursosono

    Fittings brand

    Does anyone know the website address of VM Flange & Fitting Manufacture?
  17. dursosono

    Design Code for PV use as integral rotating equipment

    PV that use as integral of rotating equipments are excluded of BPVC VIII-1. Which Code/Standard can be used as rule of construction for those PV?
  18. dursosono

    Wellhead's Material

    What the materials (ASTM or AISI) that generally use for casing head housing (refer to API 6A-75k-AA Class)?
  19. dursosono

    RT Examination of Girt Weld Joint for Category M Fluid Service

    Per subject above, shall we performed 100% RT examination according to Asme B31.3? If "YES" in which paragraph this statement/ requirement appear?
  20. dursosono

    Susceptible material with SSC/SCC/HIC

    Does material SS more susceptible of SSC/SCC/HIC than CS? According to NACE MR0175 part-2, P-No. 1 has acceptable with this Standard. In part-3 for SS (P-No. 8) has limitation max parsial pressure of H2S. It's mean for P-No. 1 is acceptable without limitation of max H2S partial press.?

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