Basic knowledge of direct buried corrugated compensator

Basic knowledge of direct buried corrugated compensator
 
1 . Direct buried corrugated compensator should check its model, specification and pipeline configuration before installation, which must meet the design requirements. This
2 . It is strictly forbidden to use the method of deformation of direct buried corrugated compensator to adjust the installation tolerance of the pipeline, so as not to affect the normal function of the direct buried corrugated compensator, reduce the service life and increase the load of the pipeline system and equipment support parts. This
3 . All moving parts of the direct buried corrugated compensator shall not be stuck or restricted by external parts, and ensure the normal movement of each moving part.
4 . When hydrostatic test, the secondary fixed pipe frame with the end of the compensator pipe should be reinforced so that the pipe does not move or rotate. For gas medium compensator and its connecting pipeline, should pay attention to whether the filling of water need to add temporary support. Hydraulic test water cleaning solution 96 chloride ion content shall not exceed 25PPM.
5 . Directly buried corrugated compensator and the bellows contact insulation material should not contain chloride ions.
6 . After the hydraulic test, the water in the wave shell should be drained as soon as possible, and quickly dry the inner surface of the wave shell. Direct burial corrugated compensator is a compensator commonly used to absorb thermal deformation of direct burial pipeline. It is used for axial compensation with large compensation volume. Direct buried corrugated compensator is mainly applied to axial compensation with superb bending resistance, so the influence of pipeline settlement is not considered. Under the protection of direct buried corrugated compensator shell and guide sleeve, free expansion and contraction compensation can be realized. Other performance is the same as common corrugated compensator.