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  1. Leonardobetta

    Piping Codes for steel plant

    You should refer to Project specifications provided by your respective client. Within the same, you will find all required codes w.r.t to your design: "ex. piping specification, material selection phylosophy....etc" All project documents shall be provided to Contractors/Subcontractors as a...
  2. Leonardobetta

    ASTM specification for UNS 32750 bolts

    Yes. These bolts shall be coated bolts "i.e PTFE coating".
  3. Leonardobetta

    field engineering for piping erection at petrochemical plants.!!

    Such questions without details will have useless answers. Indeed, Projects execution relies on Client/Contractor stringency w.r.t quality and safety requirements; as remaining construction aspects are manageable interms of progress boosting up to any extent required. Though progress is an...
  4. Leonardobetta

    I am relatively new in estimation o

    Your inquiry has conflict with your attachments; as you are requesting to calculate strength for steel pipelines and your enclosed attachments are indicating PVC material. In this sense, referring to your att. "PVC Material"; kindly find the below answer for your inquiry: Collapse Strength of...
  5. Leonardobetta

    Gasket Selection

    Already i've replied in the previous subforum.In this regards, i totally recommend in not doubling your post question in various Subforums. Besides, pls refer to the below answer for your inquiry: bolting and gasket insulation kit is recommended. Pls refer to the below website...
  6. Leonardobetta

    Gasket Selection

    bolting and gasket insulation kit is recommended. Pls refer to the below website: http://www.corrosionservice.com/docs/Flange Insulating Gasket-TYPE E: Type E is a full-faced gasket with the same outside diameter as the flange and precision cut bolt holes. This design facilitates proper...
  7. Leonardobetta

    ASME B31.3 piping, hydrostatic pressure test, loose blind flanges

    Back to the initial question; whether testing is required or not. For sure & 100% is certainly required for all flange jts connection (i.e flange-flange, flange to blind flanges). Note: testing done at Fabshops is to prove the integrety of shop welded jts; whereas, testing done at site is...
  8. Leonardobetta

    ASTM specification for UNS 32750 bolts

    I suggest Studbolt A193-B7M, Nuts A194-2HM Dims to BS 4882 & B18.2.2
  9. Leonardobetta

    Nozzle Reinforcement (MAWP or Design Pressure)

    Referring to the initial inquiry; i suggest the below steps to be followed inorder to clear such dispute: 1- During 1st & 2nd pass submittal phase; it is clearly indicating that afformentioned submittals are not finally approved/approved with comments. Thus submitted documents will be be...
  10. Leonardobetta

    Heat input for each pass or for each layer ( ASME IX)?

    During Welding Procedure Qualification;measuring heat input is a mandatory record for generating & validating required measurements that let your PWPS qualification succeed with subject parameters. Furthermore, subject records will be your margin reference during welding operations; as the...

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