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Sleeve plus rotary compensator
The sleeve compensator, also known as a tubular expansion joint, is a compensation device used in hot-fluid pipelines. It is primarily designed to absorb and compensate for axial thermal expansion displacements that occur after straight pipelines have been installed. This type of compensator is directly installed in pipelines that convey non-corrosive fluids—whether flowing in one direction or multiple directions. The sleeve-type compensator is widely used in pipelines across various industries, including urban heating, metallurgy, mining, power generation, petrochemicals, and construction. It mainly consists of a sleeve (core pipe), an outer shell, and sealing materials.
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The inner and outer surfaces of the elbow shall be smooth and free from defects that could compromise its strength or appearance, such as knots, scratches, or laps. Upon detection of any defects, they shall be ground down to remove them. The reduction in wall thickness at the ground areas shall be no less than 93.5% of the original wall thickness. The ground areas must be smoothly rounded, and their defect-free status shall be confirmed by means of dye penetrant testing or magnetic particle inspection until no defects remain.
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The inner and outer surfaces of the elbow shall be smooth and free from defects that could compromise its strength or appearance, such as knots, scratches, or laps. Upon detection of any defects, they shall be ground down to remove them. The reduction in wall thickness at the ground areas shall be no less than 93.5% of the original wall thickness. The ground areas must be smoothly rounded, and their defect-free status shall be confirmed by means of dye penetrant testing or magnetic particle inspection until no defects remain.
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The inner and outer surfaces of the elbow shall be smooth and free from defects that could compromise its strength or appearance, such as knots, scratches, or laps. Upon detection of any defects, they shall be ground down to remove them. The reduction in wall thickness at the ground areas shall be no less than 93.5% of the original wall thickness. The ground areas must be smoothly rounded, and their defect-free status shall be confirmed by means of dye penetrant testing or magnetic particle inspection until no defects remain.
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