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Blind flange lamination using FRP material

  • 1.  Blind flange lamination using FRP material

    Posted 8 days ago
    Hi fellas,  
    Good day to you

    My name sita.  Anyone here can share about reference of lamination FRP for blind flange. My case is the blind flange being swollen and cracked after hydrotest and burst test in high pressure.  Eventhough,  the products should be not crack or defect in that pressure and can tolerate in higher pressure. 

    Thank you all
    Hope you always in good health


    Best regards, 
    Sita


  • 2.  RE: Blind flange lamination using FRP material

    Posted 3 days ago
    I think surge analysis need to be revisited along Flange design criteria adopted.  Especially with RTRP or FRP  HOOP STRESS plays vital role as its impact is directly felt on the wall of the RTRP wall.

    The Lamination Joint shall meet API 15 LR or API 15 HR Spec as applicable.
    Laminated joints shall not be used for pipe sizes below 400 mm.

    The Outside Diameter and bolt hole template of RTRP flanges size 24 in and above shall be as per ASME B 16.47



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