Internal sleeves is a metal liner inside the Metal expansion joints, it is available for all expansion joints. It used to protect the internal surface of the metal expansion joints from media which may damage its integrity. At the same time, the Internal sleeves also with the function of direction guiding, to avoid the unstability of the bellow elements when the expansion joints compensates the deformation of the pipelines.
Below are available options of internal sleeves Bellowman be able to provide for your expansion joints applications.
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Metal expansion joint-single internal sleeveIt is the most common sturcture type of internal sleeve. It gives the maximum durability to the expansion joints. The internal sleeve is fixed.
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Metal expansion joint-lapped internal sleeveThis kind of Internal sleeve are usually used for the application of large axial movements.
