Installation Instructions


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Recommended Installation Instructions




  • 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 damaging environment.


  • Make the piping system by fitting the expansion joint first. By stretching, compressing, or offsetting the joint to fit the piping, it may be over stressed when the system in service.


  • It is good practice to leave one flange loose until the expansion joint has been fitted into position. Make necessary adjustment of loose flange before welding.


  • Install joint with arrow pointing in the direction of flow.


  • Remove all shipping devices after the installation is complete and before any pressure test of the installed system.


  • Remove any foreign material that may have been lodged between the convolutions.


  • Refer to EJMA Standards for proper guide spacing and anchor recommendations.









  • Do not drop or strike carton.


  • Do not remove shipping bars until installation is complete.


  • 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 asbestos.


  • 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 an expansion joint alignment of bolt holes. Ordinary bellows are not capable of absorbing torque.


  • Do not hydrostatic pressure test or evacuate the system before proper installation of all guides and anchors.


  • Pipe hangers are not adequate guides.


  • Do not exceed a pressure or 1½ times the rated working pressure of the expansion joint.


  • Do not use shipping bars to retain the pressure thrust if tested prior to installation.



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General Information
Operating Principle
Metallic Expansion Bellow Types
Metallic Expansion Bellow Accessories
Installation Instructions
Quality & Testing Capabilities
Order Information


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