Compensator manufacturers details for selection due to the constraints of the compensator various aspects is quite complex, but any complex piping system can be chosen in several different parts of the fixing bracket choose a different setting, it is divided into several shapes relative Simple separate pipe section, "Z" shaped tube sections and "Π" tube section, etc., and separately determining the deformation and the compensation amount of each pipe section, depending on the type compensator many correctly selection is very important, and therefore in the tube system When the overall design, the pipeline should be fully taken into account the direction and support system (including fixed tube rack, slide the guide pipe racks, etc.) in the design and considering the shape and configuration of the compensator to show safe, reasonable, practical, economical the best combination. Bellows compensator which is based on a flexible bellows as the core element in the pipeline further axial offset laterally in three directions and angles. Axial compensator in order to reduce the phenomenon of self-excited media. No inner tube inside the product, greatly limits the radial compensation capability, it is generally only used to absorb or compensate for axial displacement of the pipe (if piping systems do need a small amount of radial displacement, can be ordered at explain its maximum displacement path): transverse displacement compensator (large rod) is perpendicular to the lateral displacement of the main absorption axis compensator, a small rod horizontal displacement compensator adapted to absorb lateral displacement can also absorb axial, angular and any three a direction of displacement of composition: hinge compensator (also known angular compensator). It is on a two or three compensators supporting the use (single use hinge compensator without compensation capability), one way to absorb lateral deformation plane, universal hinge (angular) compensation, consisting of two or three complete used, the amount of deformation can be absorbed three dimensions.