Quality Assurance & Safety Measures

  • Shipping and Handling Precautions:
  • Storage:
    • Store expansion joint in a dry place to prevent corrosion due to atmospheric humidity.
    • Proper painting and protection should be provided where the surrounding environment is harmful to expansion joint.
    • The storage place should have controlled traffic and movement of materials to prevent denting and scores.
    • Adequate packing should be provided for the flanged expansion joints.
    • The lock nuts of the tie-rods should not be adjusted for storage of expansion joint, without informing FEPL.

     

  • Installation:
    • DO NOT LIFT THE EXPANSION JOINT WITH CHAINS OR BELTS WHICH ARE IN DIRECT CONTACT WITH THE BELLOW ELEMENTS.
    • Always use proper devices or ask FEPL to provide lifting lugs.
    • Do not remove shipping restraints before installation is complete.
    • Keep the free end of the internal sleeves/liners in the direction of the flow or keep the arrow of “FLOW” sign in the direction of the flow of fluid.
    • Provide proper gaskets between two matching flanges.
    • Take enough precautions to prevent the bellow elements from getting arc strikes or dents.
    • Do not compensate misalignment of the pipelines with the expansion joints, without prior notice to FEPL. This would significantly reduce life of the expansion joint.
    • Provide proper guiding to the adjacent pipeline, for proper and long life functioning of the expansion joint.
    • Ensure proper spacing of locknuts.

     

  • Post installation:
    • Remove all the shipping restraints after installation.
    • Ensure proper flow direction of expansion joint.
    • Check the bellow elements for any dents, scores, or marks.
    • Tighten all the fasteners and locknuts.
    • Ensure that proper expansion joint is installed in the proper place.
    • Avoid clotting of any particulate material between the convolutions of the expansion joints which will hinder functioning of the bellow element.

     

  • Inspection before pressure test or commencement:

 

  • Inspection after the commencement of the system:
    • EXTREME PRECAUTION SHOULD BE TAKEN WHILE INSPECTION OF A SYSTEM UNDER PRESSURE.
    • Inspect for any cracks or leaks or loss of pressure.
    • Distortion of anchors, lugs, tie-rods or any other hardware of expansion joint.
    • Unprecedented movement of the piping system.
    • Evidence of any type of squirm in expansion joint.
    • Bulging of any part of expansion joint.
    • Careful inspection of the weld joint of the expansion joint for any leaks.
    • Any abnormality should be informed to FEPL as soon as possible.

    A proper periodic inspection plan should be prepared

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