上海淞江减震器集团有限公司介绍：DN250双球橡胶避震接头产品信息，这里说下DN250双球橡胶避震接头参数：长度325mm，轴向压缩60mm，轴向拉伸35mm，横向位移35mm。淞江集团为客户提供一款新型球墨法兰双球橡胶接头产品，法兰采用QT450球墨铸铁材质，该材质具有良好的塑性和韧性，在消防管件领域非常盛行。

Shanghai Songjiang shock absorber Group Co., Ltd. introduces the information of DN250 double ball rubber shock absorber joint. Here are the parameters of DN250 double ball rubber shock absorber joint: length 325mm, axial compression 60mm, axial tension 35mm, transverse displacement 35mm. Songjiang group provides customers with a new type of ductile iron flange double ball rubber joint product. The flange is made of QT450 ductile iron, which has good plasticity and toughness, and is very popular in the field of fire pipe fittings.

双球橡胶接头优点：产品本身设计比单球型长，具有良好的减震和降噪效果。具有良好的伸缩位移性能。使用寿命比单球使用寿命长。在国外使用双球橡胶接头的概率大于单球型橡胶接头。安装后可吸收管道震动产生的横向、轴向、角向位移；不受管道不同心，法兰不平行的限制。

Advantages of double ball rubber joint: the design of the product itself is longer than that of single ball type, and has good shock absorption and noise reduction effect. It has good expansion displacement performance. The service life is longer than that of single ball. The probability of using double ball rubber joint is higher than that of using single ball rubber joint abroad. After installation, it can absorb the lateral, axial and angular displacement caused by pipeline vibration, and is not limited by the non concentric pipeline and non parallel flange.