产品介绍：由—个波纹管及销轴 、 较链板和立板等结构件组成 ， 只能吸收—个平面内的角位移并能承受波纹管压力推力的膨胀节。

公称通径：DN50-DN5000 (mm) 

设计压力：0.25-2.5 (Mpa) 

Product int「oduction: It consists of a bellows and structu1·al parts such as pins. hinge plates and vertical plates. It can only absorb the angula1· displacement in one plane and can withstand the pressure and thrust of the bellows. 

Nominal diameter: DN50-DN5000 (mm) 

Design pressure: 0.25-2.5 (Mpa)