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Sleeve type expansion joint is also called compensator, pipeline expansion joint. It is a compensation device for hot liquid pipe line. Mainly used for direct buried pipeline. Suitable for hot water, steam, and oil medium. By sliding sleeve tube to realized heat expansion compensation.
Sleeve type expansion joint suitable for pressure rating ≤2.5MPa, and medium temperature -40°C~600°C.
Sleeve type expansion joint apply new type sealing material of soft plumbago ring. This new materials has the features of big intensity, small friction factor (0.04~0.10), aging resistance and easy for maintenance.
Sleeve type expansion joint using age is equal to pipeline. After special treatment on the sliding surface, it has good corrosion resistance in salt liquid, the corrosion resistance rate is 50 times higher than austenite stainless steel.
At the same time, because of long time wearing, it may cause sealing effect weaken. In this case, can tighten the flange again to enforce the sealing, And could also loose flange and take off clamping ring, add one or two layers sealing ring.
Sleeve type expansion joint have not requirement for chloridion content. It is especially suitable for chloridion overproof environment.
Sleeve type expansion joint is classified with single direction and double directions compensation. For the double directions type, no mater the medium flow in from which end, the both ends sliding sleeve all slid automatically.
sleeve type expansion joint
