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Precautions for Installing Bellows Compensators
Release time:
Aug 11,2022
When using the device, please pay attention to the following points: Before installing the compensator, first check its model, specifications, and pipeline configuration to ensure they comply with the design requirements. For compensators equipped with an inner sleeve, make sure the orientation of the inner sleeve matches the direction of the medium flow. For hinged compensators, the hinge’s rotation plane must align with the displacement plane.
When using this device, please pay attention to the following points: Before installing the compensator, first check its model, specifications, and pipeline configuration to ensure they comply with the design requirements. For compensators equipped with an inner sleeve, make sure the orientation of the inner sleeve aligns with the flow direction of the medium. For hinged compensators, the hinge’s rotation plane must coincide with the displacement plane.
For compensators requiring “cold tightening,” the auxiliary components used for pre-deformation may only be removed after the pipeline installation is complete. It is strictly prohibited to use the deformation of bellows compensators to adjust installation errors in the pipeline, as this could impair the compensator’s normal function, shorten its service life, and increase the loads on the piping system, equipment, and supporting structures.
During installation, welding spatter is not allowed to splash onto the surface of the bellows, and the bellows must not be subjected to any other mechanical damage. After the piping system has been installed, the yellow auxiliary positioning components and fasteners used during transportation should be promptly removed from the bellows compensator. Furthermore, the limiting devices should be adjusted to the required positions according to design specifications, ensuring that the piping system has sufficient compensation capability under ambient conditions.
All moving components of the compensator must not be jammed or restricted by external structures, and their normal positions in all directions of movement must be ensured. During the hydrostatic test, the fixed pipe supports adjacent to the pipeline equipped with the compensator should be reinforced structurally to prevent any movement or rotation of the pipeline. For compensators and connecting pipelines used with gaseous media, special attention should be paid to whether temporary supports need to be installed when water is introduced. The chloride ion content in the water used for the hydrostatic test must not exceed 25 ppm.
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