Lateral large rod-type bellows expansion joints (expansion joints, expansion joints, bellows, compensators) large horizontal rod compensator consists of taking over the two large rod bellows and other parts. It can absorb piping within any plane transverse displacement. Displacement is a spherical rod nut washer that rotates around the ball meters, while Rod also has the ability to withstand pressure thrust. Features: horizontal rod compensator using a hydraulic molding and mechanical molding technology, and to assist with computer optimized design, manufacturing, with accurate size, surface clean non-invasive, compact structure, large amount of compensation, no leakage, corrosion resistance, longevity Long, easy to install, reliable product quality and other advantages. Also according to the user's work environment, conditions and fatigue damage frequency for the user to develop other types and uses of bellows. The product is widely used in iron and steel, petroleum, chemical, metallurgy, electricity, drainage, construction and other industries. Plane stability bellows, axial stability and corrosion resistance, related to the amount of displacement that is related to the fatigue life. Too low will result in fatigue life of bellows stability and corrosion performance. According to the test and experience, bellows fatigue life of the project can not be used for heating is less than 1000 times. Bellows can not load, you should separate lifting; addition to the design requirements of pre-stretching or cold tight pre-deformation, the deformation of the bellows is strictly prohibited method to adjust the misalignment pipeline; installation process does not allow the bellows welding slag splashing surface and by other mechanical damage; bellows all active components shall be external member stuck or limit its moving parts working properly.