Product Name: Horizontal Large Diameter Bellows Expansion Joint
Nominal Pipe Size: DN100 - DN3000 (mm)
Design Pressure: 0.1～2.5 (Mpa)
Design Temperature: -20℃ to 950℃
Connection Type: Flange / Welding
Standard: GB/T12777-2008
Material: SUS304, SUS321, SUS316L
Introduction to Horizontal Large Draw Rod Bellows Expansion Joints
The expansion joint consists of two bellows with identical geometric parameters and wave numbers connected by a middle tube, along with rods and end plates, forming a flexible component. It is primarily used to compensate for lateral displacement of single or multi-plane bending pipe sections. Suitable for "L" and "Z" type pipe systems. As the rods can withstand pressure thrust and other additional external forces, the expansion joint itself absorbs internal pressure thrust without exerting external force on the pipeline. Therefore, the pipelines at both ends of the expansion joint can be supported by intermediate fixed brackets or guide brackets, reducing construction costs and improving efficiency.
Our horizontally mounted bellows expansion joints are designed with optimized specifications according to the high American EJMA standards, featuring excellent flexibility, corrosion resistance, high-temperature resistance, wear resistance, and long fatigue life. They are capable of absorbing the axial, lateral, and angular displacements of pipes. They have been supplied to numerous large-scale cement plants, steel mills, power plants, and chemical factories in both domestic and international markets, ensuring stable and reliable product quality.
Horizontal Large Diameter Bellows Expansion Joint Performance Features:
Two corrugated hoses connected by a middle pipe, along with tie rods, end plates, and spherical and conical gaskets, form the assembly, primarily designed to absorb lateral displacement, and can also compensate for axial, lateral, angular, or any combination of these displacements. It is recommended to install the compound tie rod type expansion joint in the middle short pipe arm of a 90° Z-shaped pipeline to compensate for the axial displacement of the long pipeline ends.
Lateral displacement is the relative displacement between one end and the other end of the bellows in a direction perpendicular to the longitudinal axis. A single bellows can have lateral displacement, but the amount is very small. A good solution is to use a compound bellows as shown in Figure 2. The result is an increased lateral displacement compensation and reduced force.
Horizontal Large Draw Rod Bellows Expansion Joints Application Range:Primarily used in "L" and "Z" pipe systems:
Jiangsu Zhongxin Bellows Co., Ltd. specializes in the production of expansion joints, bellows, butterfly valves, metal hoses, and more. Welcome to inquire and place orders from a wide range of customers!
