Lap joint flanges are ring-type joints used to connect pipe systems, components, and equipment. These particular types of flanges are popular within piping and duct system designs due to the benefits and the high level of performance they provide.- Structure and Principle:
The flange is fitted onto the pipe using components such as flanges or steel rings. The flange can move at the pipe end. The flange or steel ring serves as the sealing surface, and a seal is achieved by tightening the flange. Because the steel ring/flange obstructs the contact between the flange and the medium, the flange does not directly contact the medium.- Features and Advantages:- Easy Installation: The flange is rotatable, making it easy to align the bolt holes, reducing the difficulty of installing large-diameter pipelines. It is also suitable for scenarios where pipelines need frequent disassembly for cleaning and inspection, or where only the flange needs to be rotated to align the bolt holes (without rotating the pipe).- Displacement Compensation: It can compensate for the displacement and deformation of pipelines caused by temperature changes and vibrations, reducing pipeline system stress and protecting pipelines and equipment.





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