What are the Precautions for installing Pipeline Rubber Bellows?

Pipeline Rubber Bellow FAQ | 2022-05-17

The Precautions for installing Pipeline Rubber Bellows are as below：

1. The model, specification and pipeline configuration of the Pipeline Rubber Bellows should be checked before installation, and must meet the design requirements.

2. For the Pipeline Rubber Bellows with the inner sleeve, attention should be paid to making the direction of the inner sleeve consistent with the flow direction of the medium, and the hinge rotation plane of the hinge type expansion joint should be consistent with the displacement rotation plane.

3. For expansion joints that need to be “cold-tightened”, the auxiliary components used for pre-deformation should be removed after the pipeline is installed.

4. It is strictly forbidden to use the method of deformation of the pipeline rubber bellows to adjust the installation tolerance of the pipeline, so as not to affect the normal function of the pipeline rubber bellow, reduce the service life and increase the load of the pipeline system, equipment and supporting members.

5. During the installation process, the welding slag is not allowed to splash on the surface of the wave shell, and the wave shell is not allowed to suffer other mechanical damage.

6. After the installation of the piping system is completed, the yellow auxiliary positioning components and fasteners used for installation and transportation on the expansion joint of the pipeline should be removed as soon as possible, and the limiting device should be adjusted to the specified position according to the design requirements so that the piping system has good performance under environmental conditions. adequate compensation capacity.

7. All movable components of the Pipeline Rubber Bellows shall not be stuck by external components or limit their scope of activity, and the normal operation of each movable part shall be ensured.

8. During the hydraulic test, the secondary fixed pipe frame with the pipe end of the Pipeline Rubber Bellows should be reinforced so that the pipe does not move or rotate. For the expansion joint used for gas medium and its connecting pipeline, it is necessary to pay attention to whether it is necessary to add temporary support when filling with water.