Two metal bellows elements connected by a centre spool and fitted with flanges or pipe weld ends, with movement control tie rods attached to the joint hardware. The joint is generally fitted with welded (fixed in place) tie rod washers as movement restraining stops, or alternativly can be with threaded rod as the tie rod utilising adjustable nuts as the movement restraining stops. This latter method is generally referred to as jacking rods (i.e. JUFF Joints).
Suitable for applications where large amounts of lateral movement must be absorbed without imposing pressure thrust forces on the piping system.
Tie rod support lugs attached to the centre spool are provided to assist in stabilising the centre spool.
Manufactured to the guidelines laid down in the Standards of the Expansion Joint Manufacturers Association Inc. (EJMA).