特点 Features：

用于燃气输送管道连接；能有效补偿因冷热变化引起的管道伸缩变化，保障管系安全运行。

For gas pineline connection; It can effectively compensate the expansion change of pipeline caused by the change of cold and heat, and guarantee the safe operation of pipeline system.

 

基本参数Basic Parameter：

公称通径Nominal Diameter：DN25-DN1000

公称压力Nominal pressure：PN≤0.6MPa~6.4MPa

工作温度Operating Temperature：-20℃~80 ℃

介质Medium：天然气Natural gas

材质Material：波纹管Bellows－304不锈钢stainless steel；

法兰The flange－碳钢或304不锈钢Carbon steel or 304 stainless steel