Safe Lifting & Handling

Metal expansion joints should only be handled using the correct lifting points and procedures Use only designated lifting lugs. These are engineered to support the full weight of the assembly.Never lift or handle the unit using bellows, covers, tie rods, or shipping bars. Doing so can cause serious deformation and premature failure. Shipping bars (painted yellow) are not lifting devices and must remain installed until final pipe installation and anchoring are complete.Expansion joints under 250 kg without lifting lugs require a carefully evaluated handling method at the site. Ensure that the bellows are never left unsupported or suspended freely without restraint.

Precautions During Installation

  • Proper installation is critical to ensuring the expansion joint performs to its design life. Installation errors are one of the most common causes of premature failure.
  • Protect the bellows from weld spatter, arc strikes, dents or impact damage.
  • Do not use cleaning agents that contain chlorides, caustics or sulphides. Use only chloride-free insulation and cleaning materials.
  • The installation area should be clear of sharp objects or burrs.
  • If unavoidable, mark these hazards and take precaution during positioning.
  • Ensure clean, smooth, and parallel flange faces on the connecting pipe ends.
  • When using internal sleeves or flow liners,align the unit such that the flow arrow points in the correct direction.
  • Avoid rotating or twisting the expansion joint to match flange bolt holes. Doing so can introduce dangerous torsion stresses on the bellows.
  • Leave one flange loose during installation to simplify alignment.
  • Use proper gaskets and tighten bolts to the manufacturer’s recommended torque.
  • Follow installation guidelines provided by LSI-MECH Engineers Pvt LTD
  • LSI-Mech Engineers Pvt. Ltd. has assisted customers in successful installations.

Why installation?
proper placement of Metal Expansion Joints is crutial Proper placement of anchors, guides, and pipe supports is crucial to the successful operation of the system.

Failure to follow these principles may lead to

  • Overloading of the bellows
  • Piping instability
  • Reduced service life
  • Catastrophic failure during operation

For our installation manual or site erection support contact : lsi-mech@lonestarindia.com

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