The double-layer composite structure features a 50μm filtration precision geotextile outer layer that can intercept more than 99% of soil fine particles, extending the service life of the drainage system by preventing internal clogging. The clamp-lock connection ensures no leakage at the connection parts, and its high and low temperature resistance performance is better than ordinary blind drains, making it suitable for extreme climate regions. It eliminates the need for additional filtering layers, reducing installation costs and time.
Each unit has a length of 1.2m, with an outer diameter of 90mm, inner diameter of 70mm, and geotextile thickness of 200g/㎡. The core wall thickness is 2.5mm, with a compressive strength of 300kPa, and the operating temperature range is from -30℃ to 90℃. Each meter of the drain weighs 1.8kg, and it is compatible with a pH range of 3-11 for acid and alkali corrosion resistance. Custom lengths are available to meet different project needs.
It is applicable to wetland ecological drainage systems, urban green belt underground drainage, golf course fairway drainage, highway slope drainage, and leachate collection around sewage treatment plants. It is suitable for hidden drainage scenarios that require efficient filtration to prevent clogging.
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