The expansion function of the bellows expansion joint is mainly realized by the bellows. The function and strength design of the bellows expansion joint is mainly the design of the bellows. Different designs and combinations of the bellows can make the bellows stretch, compress or bend, thus forming three basic types of bellows expansion joints: axial, transverse and angular.
The elbow force balanced corrugated expansion joint is used for the connection between equipment. Its function is to compensate the thermal expansion of the pipeline between two equipment, reduce the force of installation error on equipment, and facilitate installation. The bending force balanced corrugated expansion is adopted to save energy, so that the equipment is not subject to the blind plate force generated by internal pressure, and the stress condition of the equipment is improved. The equipment is easy to fix. The corrugated expansion joint is used as the soft coupling pipe for the pump and is applied to the inlet and outlet pipelines of the pump. Universal (i.e. universal) expansion joints are installed on the inlet and outlet pipelines of the pump to compensate the thermal expansion of the pipeline, reduce the thrust of the pipeline thermal expansion on the pump, or absorb the vibration generated by the pump operation.
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