产品介绍：由位于两端的两个工作波纹管和位于中间的—个平衡波纹管及拉杆和端板等结构件组成， 主要用千吸收轴向位移并能平衡波纹管压力推力的膨胀节。

公称通径：DN50-DN5000 (mm) 

设计压力：0.25-1.6 (Mpa) 

Product introduction: It consists of two working bellows at both ends and a balance bellows in the middle. and structural parts such as tie rods and end plates. It is mainly used for absorbing axial displacement and balancing the pressu「e and thrust of the bellows. Expansion joint 

Nominal diamete「DN50-DN5000 (mm) 

Design pressure: 0.25-1.6 (Mpa)