RECOMMENDED INSTALLATION INSTRUCTIONS

Metal Bellows Expansion Joints have been designed to absorb a specified amount of movement by flexing of the thin guageconvolutions. If proper care is not taken during installations, it may reduce the cycle life and the pressure capacity of theexpansion joints, which could result in an early failure of the bellows element or damage the piping system.

    DO’S
  • Inspect for damage during shipment, i.e. dents, broken hardware, water marks on carton etc.
  • Store in clean dry area where it will not be exposed to heavy traffic or damaging environment.
  • Use only designated lifting lugs.
  • Make the piping system fit the expansion joint. By stretching, compressing or offsetting the joint to fit the piping. It may be overstressed when the system is in service.
  • It is good practice to leave one flange loose until the expansion joint has been lined into position. Make necessary adjustment of loose flange before welding.
  • Install bellows with arrow pointing in the direction of flow.
  • Install single van stone Liners pointing in the direction of flow. Be sure to install a gasket between the liner and van stone flange as well as between the mating flange and liner.
  • With telescopic liner, install the smallest I.D. liner pointing the direction of flow.
  • Remove all shipping devices after the installation is complete and before pressure test of the fully installed system.
  • Remove any foreign material that may have become loaded between the convolutions.
  • Refer to EJMA standards for proper guide spacing and anchor recommendations.

    DON’T
  • Do not drop or strike carton.
  • Do not remove shipping bars, until installation is complete.
  • Do not remove any moisture absorbing descant bags of protective coating, until ready for installation.
  • Do not use hanger lugs as lifting lugs without approval of manufacturer.
  • Do not use chains or any lifting device directly on the bellows or bellows cover.
  • Do not allow weld splatter to hit unprotected bellows. Protect with wet chloride free insulation.
  • Do not use cleaning agents that contain chlorides.
  • Do not use steel wool or wire brushes on bellows.
  • Do not force-rotate one end of expansion joint for alignment of bolt holes. Ordinary bellows are not capable of absorbing torque.
  • Do not hydrostatic pressure test or evacuate the system before installation of all guides and anchors.
  • Pipe hangers are not adequate guides.
  • Do not exceed a pressure test 1-1/2 times the rated working pressure of the expansion joints.
  • Do not use shipping bars to retain thrust if tested prior to installation.
  • The manufacturer’s warranty may be void if improper installation procedure has been used.

RECOMMENDED INSTALLATION INSTRUCTIONS

Rubber Bellows have been designed to absorb a specified amount of movement by flexing of convolutions. If proper care is not taken during installations, it may reduce the cycle life and the pressure capacity of the expansion joints, which could result in an early failure of the bellows element or damage the piping system.

    DO’S
  • Inspect for damage during shipment, i.e. dents, broken hardware, water marks on carton etc.
  • Store in clean dry area where it will not be exposed to heavy traffic or damaging environment.
  • Make the piping system fit the expansion joint. By stretching, compressing or offsetting the joint to fit the piping. It may be overstressed when the system is in service.
  • It is good practice to leave one flange loose until the expansion joint has been lined into position. Make necessary adjustment of loose flange before welding.
  • Install bellows with arrow pointing in the direction of flow.
  • Use Proper Fixed Support to absorb pressure thrust arising from Bellows.
  • Remove any foreign material that may have become loaded between the convolutions.

    DON’T
  • Do not drop or strike carton.
  • Do not use chains or any lifting device directly on the bellows or bellows cover.
  • Do not allow weld splatter to hit unprotected bellows. Protect with wet chloride free insulation.
  • Do not use steel wool or wire brushes on bellows.
  • Do not force-rotate one end of expansion joint for alignment of bolt holes. Ordinary bellows are not capable of absorbing torque.
  • Do not hydrostatic pressure test or evacuate the system before installation of all guides and anchors
  • Pipe hangers are not adequate guides.
  • Do not exceed a pressure test 1-1/2 times the rated working pressure of the expansion joints.
  • Do not use shipping bars to retain thrust if tested prior to installation.
  • The manufacturer’s warranty may be void if improper installation procedure has been used.