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| The design of compensators is based on several factors which among others include movements. The compensator absorbs movements, which are depended on the geometry and the properties of the materials. Standard compensators from Belman absorb axial, lateral and angular movement. The chosen compensator type regulates if either one type of movemens or a combination of several types of movements are absorbed. |
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Axial movementAxial movement is a change in the length of the bellow. Due to the movements in the pipeline the compensator is either compressed or extended. This means that the compensator is shortened or lengthened. The built-in length of the compensator is within the maximum compression or the maximum extension. It is possible to pre-tension the compensator, which means that the compensator is either compressed or extended to a given length, for instance 300 mm, and fastened with a pre-tensioning device. This pre-tensioning device ensures that the compensator has the required length until installation.
To see how axial movements are absorbed please click one of the examples below:
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Lateral movement Lateral movement is a parallel displacement of the compensator's ends: One end is not exactly placed opposite the other. This displacement can be done in many different ways (sideways, op/down etc.). This movement is also named: Lateral sideways push, lateral deviation, parallel not in line and/or transverse displacement.
To see how lateral movements are absorbed please click one of the examples below:
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Angular movementAngular movement is characterized by a uniform extension on one side of the bellow and a simultaneous compression on the other side of the bellow. In other words the longitudinal axis of the compensator is displaced from its original parallel starting position. This movement is absorbed at several levels but cannot be absorbed in combination. This movement is also named rotational motion.
To see how angular movements are absorbed please click one of the examples below:
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