Lateral expansion joint with tension rod and ball joints for the absorption of lateral movement on all sides
Typ RM 300/10/l180/ F/ F - 1380
DP 6 bar
DT 280° C
lat. mov. +/- 80 mm
Often a compensating element in the form of an expansion joint is required if it is not possible to compensate the expansion in the piping systems by simple design measures.
Je nach Bewegungsart unterscheidet man dann zwischen Axial-,Lateral-und Angularkompensatoren.
Depending on the type of movement, a distinction is made between axial, lateral and angular expansion joints. The fixed points in the piping system are loaded with the following forces:
- Pipe friction force
- Spring stiffness of the metal bellows (axial, lateral and angular)
- pressure reaction force of the metal bellows (F = p x A)
In a properly designed pipeline, only one axial expansion joint between 2 fixed points must be provided. The spring rate of the metal bellows cannot withstand the pressure reaction force, caused by the internal pressure. If the fixed point is not dimensioned correctly, then the piping system is pushed apart.
See also Flexomat's installation instructions for expansion joints.