Lateral expansion joints absorb transverse and lateral movements and include restraints in the form of a ball bearing type tie rod or flat tie bar with bolts or cross hinges. A lateral expansion joint consists of two angular expansion joints connected by an intermediate pipe. The extent of the allowable lateral movement is controlled by a combination of the bending angle of the hinge arrangement and the length of the intermediate pipe.
Lateral expansion bellows are available in two designs:
1) With tie rods – lateral movement between the bolt and flange is taken care by the tie rods(minimum two tie rods). No axial movements are allowed in the system.
2) With flat iron hinges -fitted through the flanges and welded on the outside.
Key Features:
- Compensation of movement in planar and spatial systems
- Sizes up to DN 6000 and for higher pressures
- Flanged or Weld End connections
- Incorporation of patented anchoring structures
