柔性接口在输水管线中的地位经过曲折道路,得到了肯定;各种柔性接口的特点、性能水平是有所不同的;综合技术、经济各方面因素,以球铁管用的 T 型接口为最好;钢管是柔性接口发展的新空间。钢管用 Y 型接口是球铁管 T 型接口的发展,改进了胶圈定位机制,充分利用了钢材的特性,使接口更简洁有效;以 Y 型为核心技术的成品钢管将显示出性能高、价格低、易采用的竞争力。 Flexible interface in the water pipeline in the tortuous road after the affirmative; various flexible interface characteristics, performance levels are different; comprehensive technology, all aspects of economy, with a ductile iron T-type interface for the most Good; steel pipe is a new space for flexible interface development. Y-shaped steel pipe interface is the development of ductile iron T-type interface to improve the apron positioning mechanism, take full advantage of the characteristics of steel to make the interface more concise and effective; to Y-type as the core technology of the finished steel pipe will show high performance, Low prices, easy to use the competitiveness.