特点 Features：

 此类膨胀节由接管、波纹管、万向环及铰链板组合构成，它可以吸收任意平面的角向位移。吸收位移时应有两个或三个组合使用。此膨胀节具有承受内压推力的能力。

This type of expansion joints is comprised of the adaptor tubes where a pair of hinges connecting the bellow and the adaptor tubes, which can only absorb the angular displacement on the single plane. When absorbing displacement, two or three angular type expansion joints shall be combined for using. The hinges of the expansion joints have the capacity to bear the internal pressure pushes.