Expansion joint manufacturer on the use and maintenance of pipeline expansion joint.

1、The expansion joint should be tested for its type specification, specification and pipeline equipped condition before installation and use, and must meet the design provisions.
2、For the expansion joint with inner sleeve specification, special attention should be paid to make the orientation of the inner sleeve specification consistent with the material mobility orientation, and the hinge rotation plan of the hinge type expansion joint should be consistent with the offset rotation plan.
3、To carry out "cold tight" expansion joints, the preformed components commonly used to assist prefabricated components should be disassembled only after the pipeline is assembled.
4、It is forbidden to use the method of deformation of the expansion joint to adjust the assembly deviation of the pipeline, in order to prevent endangering the conventional role of the expansion joint, reducing the service life and enhancing the load of pipeline, machinery and equipment and supporting prefabricated components.
5、In the assembly process, welding scars are not allowed to spill out to the surface of the wave shell, and the wave shell is not allowed to be damaged by other mechanical equipment.
6、After the pipeline is assembled, it should be dismantled as early as possible on the expansion joint as assembling and transporting the light yellow assisted positioning prefabricated components and standard parts, and the limiting equipment should be adjusted to the required parts according to the design, so that the pipeline has sufficient compensating working capacity in the natural environment.
7、All subject active components of the expansion joint shall not be stuck or limited by the outside prefabricated components, and shall ensure the regular posture of each moving part.
8, the pressure test, solve with expansion joint pipeline top of the sub-fixed immobile pipeline bracket to carry out structural reinforcement, so that the pipeline does not produce movement or rotation. For the expansion joint with gas substance and the jointed pipeline, pay attention to whether the temporary support frame is added when flooding. The 96 chloride ion content of the pressure test tap water cleaning solution does not exceed 25PPM.