产品介绍：由一个工作波纹管或中间管所连接的两个工作波纹管和一个平衡波纹管及弯头或三通、 封头 、 拉杆、 端板和球面与锥面垫圈等结构件组成。

公称通径：DN50-DN5000 (mm) 

设计压力：0.25-1.6 (Mpa) 

Product introduction: It consists of two working bellows connected by a WO「king bellows o「intermediate pipe and a balance bellows and structur-al parts such as elbow o「 tee, head, tie rod, end plate and spherical and conical gaskets 

Nominal diameter. DN50-0N5000 (mm) 

Design pressure: 0.25-1.6 (Mpa)