China Metal Expansion Joints Suppliers | Stainless Steel Corrugated Bellows Factory for Pipelines and Vibration Reduction
Functions
- Compensate the axial, lateral and angular thermal deformation of the absorption pipeline.
- The expansion and contraction of the corrugated compensator is convenient for the installation and disassembly of the pipeline.
- Absorb equipment vibration and reduce the impact of equipment vibration on the pipeline.
- Absorb the deformation of the pipeline caused by the earthquake and ground subsidence.
Applications
Installation
- 1. The type, specification and pipeline configuration of the metal expansion joints should be checked before installation, and it must meet the design requirements.
- 2. For expansion joints which with inner sleeves, care should be taken to ensure that the direction of the inner sleeve is consistent with the flow direction of the medium, and the hinge rotation plane of the hinge-type compensator should be consistent with the displacement plane.
- 3. The expansion joints which need to be "cold-tightened", and auxiliary components used for pre-deformation should be removed after the pipeline is installed.
- 4. Strictly prohibited to use deforming the corrugated compensator to adjust the installation tolerance of the pipeline, avoid to affect the normal function of the compensator, or will reduce the service life and increase the load of the piping system, equipment and supporting components.
Frequently Asked Questions
A metal expansion joint (also known as a metal corrugated compensator) is a device composed of metal bellows and components like end pipes, supports, flanges, and conduits. It is designed to absorb dimensional changes in pipelines caused by thermal expansion, contraction, or displacement.
They compensate for axial, lateral, and angular thermal deformation in pipelines, ease pipeline installation/disassembly, absorb equipment vibrations, and mitigate pipeline deformation caused by earthquakes or ground subsidence.
They are widely applied in pipelines carrying acid, alkali, corrosive materials, oil, hot/cold water, compressed air, flue gas, pulverized coal, and in desulfurization pipelines.
No. It is strictly prohibited to force deformation of the corrugated compensator to correct pipeline alignment. Doing so can seriously affect its performance, reduce its service life, and increase the stress load on the piping system and connected equipment.
For joints with inner sleeves, you must ensure the sleeve's direction aligns with the medium's flow direction. Additionally, for hinge-type compensators, the hinge rotation plane must align with the displacement plane.