Sleeve compensator maintenance and maintenance

Pipeline operation, compensator sliding sleeve is strictly prohibited by the external lateral thrust, should always ensure that the axial concentric with the pipeline, and avoid the normal sliding sleeve to prevent the situation.
 
1 . Pipeline operation, the compensator sliding sleeve is strictly prohibited by the external lateral thrust, should always ensure that the axial concentricity with the pipeline, and avoid the situation that prevents the normal sliding sleeve sliding.
2 . Maintenance should check the sealing device, tighten the bolts in time to ensure that the seal is not leaking.
3 . The compensator sliding sleeve surface corrosion is serious, tighten the bolt after the anti-leakage effect is not obvious, should be considered to change the compensator.
4 . Elastic sleeve compensator should be properly stored before installation, to prevent sun, rain and dust pollution.
5 . Installation should be checked to fill the type specification and design is consistent, the product shows that there should be no bruises, pressure pits, serious rust and other defects affecting product quality.
6 . If the total length of the one-time finished product is consistent with the sample, there is no need to stretch or compress it again, and if there is a change in the installation mark on the telescopic main pipe, it should be aligned before installation.
7 . The pipe section welded to the two ends shall be beveled, and hydrostatic test shall be conducted as required after welding. After 24 hours of operation, the bolts at both ends of the stuffing chamber should be tightened again.
8 . Ensure that there is no lateral displacement of the pipe, only along the axial expansion, and install guide bracket on the side of the expansion pipe. When both sides have axial displacement, then both sides should be installed guide bracket to ensure that the axial displacement of the compensator eccentricity plus or minus not more than 1 degree.
9 . Insulation main directional plate welding, inclusion in the directional protection tube inside the guide tube through the sub-directional plate and the other side of the receiver welding, positioning plate and directional protection tube welding. Therefore the pipe compensator has strong support and orientation performance, while the positioning plate protects the bellows from being pulled flat.