Precautions when installing stainless steel rotary joints
The insulation material of the Rotary joint in contact with the compensator bellows does not contain chloride ions.
The hinge rotation plane of the hinge type compensator should be consistent with the displacement rotation plane. The compensator for the inner sleeve should pay attention to the direction of the inner sleeve and the direction of the medium flow.
The auxiliary components required for pre-deformation shall be removed after the piping installation is completed. A cold-tightening compensator is required. So as not to affect the normal function of the compensator, reduce the service life and increase the load of piping, equipment and supporting members. It is strictly forbidden to use the deformation method of the corrugated compensator to adjust the out-of-tolerance of the pipeline. Welding slag is not allowed to splash onto the surface of the wave shell during the installation process. The wave shell is not allowed to suffer other mechanical damage.
The yellow auxiliary fixing members and fasteners used for installation and transportation on the corrugated compensator should be removed as soon as possible, after the piping is installed. And according to the design requirements, the limit device is adjusted to the specified position, so that the piping system has sufficient compensation ability under environmental conditions. Should ensure the normal movement of each active part. All movable elements of the compensator must not be stuck by external components or limit their range of motion.
The secondary fixing frame with the end of the compensator pipeline should be reinforced during the hydraulic test. Keep the pipeline from moving or turning. For the gas medium compensator and its connecting pipeline, pay attention to whether it is necessary to add a temporary support when filling with water. The chloride ion content of the water solution for hydrostatic test should not exceed 25PPM. The accumulated water in the wave shell should be drained as soon as possible. And quickly dry the inner surface of the wave shell.