产品介绍：复式自由型膨胀节由中间管连接的两个几何参数和波数相同的波纹管及小拉杆、 端板组成的挠性部件。具有柔性好、耐腐蚀、 耐高温、 耐磨损和疲劳寿命长的特点，可吸收管道的轴向、 横向及角向位移。 已为国内外多家大型水泥厂、 钢厂、 电厂、化工厂等重点行业企业配套，产品质量稳定可靠。

公称通径：DN100-DN1600 (mm)  

设计压力：0.1-2.5 (Mpa) 

连接方式：法兰焊接

执行标准：GB/T12777-2008

材质：SUS304, SUS321, SUS316L 

Product introduction: The duplex free-type expansion joint is a flexible part composed of two bellows with the same geometric parameters and wave number connected by the intermediate pipe, small tie rods and end plates. It has the characteristics of good flexibility, cor「osion resistance, high temperature resistance, wear resistance and long fatigue life, and can absorb the axial, late「al and angular displacement of the pipeline. It has provided supporting facilities for many large-scale cement plants, steel plants, power plants, chemical plants and other key industries and enterprises at home and abroad, and the product quality is stable and reliable

Nominal diameter: DN100-DN1600(mm) 

Design pressure: 0.1-2.5 (Mpa) 

Connection method: flange/welding 

Executive standard: GB/n2777-2008 

Mate「ial: SUS304, SUS321, SUS316L