PVC双壁波纹管性能特点
Performance characteristics of PVC double wall bellows
结构独特，强度高，内壁光滑，摩擦阻力小，流通量大， 基础不需要做混凝土基础，重量轻，搬运安装方便，施工快捷；橡胶圈承插连接，方法可靠，施工质量易保证；柔性接口。抗不均匀沉降能力强；
Unique structure, high strength, smooth inner wall, small friction resistance, large circulation, no need to make concrete foundation for foundation, light weight, convenient transportation and installation, quick construction; rubber ring socket connection, reliable method, easy to ensure construction quality; flexible interface. Strong resistance to uneven settlement;
抗泄漏效果好，可耐多种化学介质的侵蚀；管内不结垢，基本不用疏通，埋地使用寿命达五十年以上。
The utility model has the advantages of good leakage resistance, corrosion resistance of various chemical media, no scaling in the pipe and no dredging basically, and the service life of the buried pipe is more than 50 years