Flange-type Bellows Expansion Joint

Key Compensation and Connection Components in Pipeline Systems​
In complex pipeline systems, various compensators and connection components play a crucial role in ensuring the safe and stable operation of pipelines. Compensators can balance the pressure thrust caused by the working pressure of the medium and reduce the axial thrust of fixed pipe supports, being particularly suitable for high-diameter pipelines or large-diameter pipelines where it is difficult to install main fixed pipe supports. Among them, lateral compensators or angular compensators are good at absorbing lateral displacements of pipelines, and the Bellow Expansion Joint (also known as universal Corrugated Compensator or universal corrugated expander) is an indispensable flexible connector for metal pipelines. This compensator consists of a bellows (an elastic element forming its working body), as well as end pipes, supports, flanges, conduits, and other accessories. By virtue of the effective elastic deformation of its working body, the bellows, it can absorb dimensional changes caused by thermal expansion and contraction in pipelines, containers, etc., compensate for axial, lateral, and angular displacements, and also be used for noise reduction and vibration damping, being widely applied in industries such as thermal power, chemicals, petroleum, metallurgy, etc.​
In pipeline connection components, double-function pressure vessel flanges are divided into flat welding flanges and butt welding flanges, with flat welding flanges further classified into Type A and Type B. If the Flange connection is to national standards, the pressure rating must be provided. For non-standard flanges with unknown connecting dimensions of the other party's flange, we can provide mating flanges, bolts, nuts, and connecting parts; for standard flanges, a comparison with standard flange dimensions is necessary to ensure compatibility. Flange Adaptor facilitates the connection of different flanges in this process, ensuring connection accuracy and stability.​
In addition to the above components, Rubber Expansion Joint is a flexible connection device with good elasticity and shock absorption performance, effectively compensating for pipeline displacements and reducing vibration impacts; Flexible Metal Hose adapts to various complex displacement requirements of pipelines with its excellent flexibility, playing a role in flexible connection in various pipeline systems; Dismantling Joint facilitates the installation, maintenance, and disassembly of pipelines, providing great convenience for pipeline system maintenance; Duckbill Check Valve can effectively prevent medium backflow, ensuring one-way circulation of the pipeline system and improving the safety of system operation. These components cooperate with each other to jointly build an efficient, safe, and stable pipeline operation system, meeting the diverse needs of pipeline systems in different industries.​