Rubber compensators significantly enhance the service life of pipelines and connecting equipment by absorbing thermal expansions and vibrations. Additionally many rubber compensators have outstanding noise absorbing qualities.

Rubber compensators are used in many industries because they have following characteristics:

• Absorbing thermal expansion.
• Absorbing axial-, lateral- and angular movements.
• Having sound deadening effects.
• Balancing misalignments in the pipeline.
• Reducing water shock.
• Vacuum- and pressure proof.
• Resistant to corrosion .
• Safe and reliable.
• Durable, with a long service life.
• Free of maintenance.
• Resistant to temperature .
• Optimizing the balance between flexibility and pressure.

Construction
Can be seen here: Bellow construction [PDF]

Restraints
Under pressure the compensator reacts in positive axial direction (effective surface x operating pressure). If a compensator is installed without restraints these movements are absorbed in the closest fixed points.  The movements and forces will be absorbed by designing the compensator with restraints. The advantages of restraints are:

• The rubber element is prevented from breaking out of the flanges.
• Movements and forces are passed on to guides and anchor points.
• Lateral and angular movements or vibrations are absorbed.

Read more here: Restraints [PDF]

Fields of application
Among others rubber compensators are placed in pipelines, near pumps, compressors etc. and used in many industries:

• Power – and processing plants
• Pulp and paper
• Heating- and ventilation systems
• Central and support sections for power plants
• Shipping
• Off-shore
• Flue gas cleaning systems
• Destruction plants
• Sewage treatment plants
• Chemical plants
• Steel plants
• Petroleum refineries