Liaoning Huawei Thermal Equipment Co., Ltd.
Address: 55 Anyang Street, Xiangyang Industrial Park, Liaoyang County, Liaoyang City, Liaoning Province
Uniform Axial Expansion Joint
II. Product Structure Characteristics
The expansion joint is composed of one bellows and two end tubes. It absorbs the axial displacement of the pipeline through the flexible deformation of the bellows (a small amount of transverse and angular displacement). End pipe can be butt welded directly with pipeline or flanged and then connected with pipeline.
The small tension bar on expansion joint is mainly used to ensure the rigid support of expansion joint bellows during transportation or as the pre-deformation adjustment of products. It is not a bearing member. This type of expansion joint has simple structure and low cost, so it should be given priority wherever possible in the pipeline.
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 pulling cables must be removed.
3. In order to reduce the stress of the pipe rack, pre-deformation (pre-tension and pre-compression) of such expansion joints can be carried out before installation. Please indicate in the contract when users need it.