Drainex drainage pipe has an innovative double wall sandwich construction, with a corrugated outer wall and a smooth inner wall. This combines high ring stiffness with excellent flow characteristics.
Drainex 排水管采用创新的双层夹心结构设计，外壁为波纹结构，内壁为光滑结构。这种设计既具有较高的环刚度，又具备优异的流体性能。
Rows of water in-take slots are symmetrically arranged around the apex of the pipe (240˚- 270˚) with a flow channel at the bottom (120˚- 90˚). The high infiltration area combined with thin inner wall structure ensures optimum water intake.
排水孔呈对称排列，分布在管道上部的圆周范围内（240˚–270˚），底部设有流通通道（120˚–90˚）。高渗透面积与薄内壁结构的结合，确保了最佳的进水效率。
The slots are protected in the valleys of the corrugated structure which reduces the possibility of blockage. The smooth core with an extremely low roughness coefficient results in greater flow rates, allowing the utilization of smaller diameter pipes.
排水孔位于波纹结构的凹槽中，可有效防止堵塞。光滑的内壁具有极低的粗糙系数，从而提升流量性能，使得可以使用较小直径的管道来达到相同的排水效果。
Drainex is manufactured in coils and lengths to the highest quality standards and are joined by push fit couplings.
Drainex 管材以线圈或定尺形式生产，符合最高质量标准，并通过插接式接头（push fit couplings）连接。
