II. Product Structure Characteristics
The bellows of this kind of expansion joint are connected with the outer cylinder and the inner cylinder respectively, and the bellows have more wave numbers. Under external pressure, it can absorb large axial displacement. Widely used in central heating steam pipelines.
III. Notices for Installation and Use
1. The direction of inner liner should be consistent with the direction of medium flow (there are flow direction marks on the outer surface of expansion joint).
2. After installation on site, the small tie rod must be removed.