A sleeve bellows compensator features: telescopic tube compensation, also known as expansion joints, piping hot fluid is compensation devices, mainly for auxiliary set straight pipe. Suitable for hot water, steam, oil medium, through the sliding movement of the sliding sleeve of external sleeve, to compensate for thermal expansion. Sleeve compensator for use in medium pressure works ≤ 1.0MPa, explain temperature -40 ° C ~ 600 ° C. Sleeve type compensator using the new flexible graphite seal ring material, which has high strength, low coefficient of friction (0.04 to 0.10), aging, effective, easy maintenance. Compensator sleeve fatigue life and the life of the pipeline is quite large. Sliding surfaces made of stainless steel, good corrosion resistance in salt water, salt solution environment. Meanwhile, after years of wear and tear due to the sealing effect leads to weakening the flange can be fastened again, enhanced sealing performance can also be packing bolt loosened, the supplement packing, tighten the bolts to continue to use. Sleeve type compensator trouble-way and two-way type of compensation structure, regardless of the medium is characterized by two-way type of compensation from any client inflows, which compensates for both ends of the sliding sleeve is always free to slide, reaching a two-way compensation, increased compensation amount . Buried sleeve-type compensator can be buried in the ground, do not set the maintenance of well installation, low construction cost. Sleeve compensator installation requirements: The compensator installed, first check its specifications are consistent with the agreed order. Two unidirectional sliding sleeve compensator should be installed in the inflow end of the medium. 3 hydrostatic test 4. Different axes of the error is less than 1% .5 In the pipeline at the compensation should be set close to the guide slide bearing, to prevent lateral displacement. 6 to protect sliding surfaces, bumps or corrosion is strictly prohibited. 7 Application bidirectional compensation fixed bearing outer sleeve hold and maintain concentric pipes, the compensation to be approximately the same distance on both sides. 8 under various temperature compensation, according to the maximum length can be installed without pretension or preload. Use and maintenance of the pipeline operation, the sliding sleeve compensator is prohibited by the external lateral thrust, you should always ensure axially concentric with the pipeline and avoid sliding sleeve impede normal sliding conditions. 2 Check the seals should repair, timely tighten bolts, ensure the seal without leakage. 3 compensator sliding sleeve surface corrosion is serious, tighten the bolts when the defense is not obvious leaks, you should consider replacing the compensator.