Product Description
Flexible Permeable Pipe is a highly efficient drainage material designed for modern geotechnical and underground engineering projects. The product combines a rust-resistant spring steel frame, permeable nonwoven filtration fabric, and external polypropylene filament reinforcement to create a durable and highly permeable drainage pipe system.
Unlike traditional PVC or rigid drainage pipes, Flexible Permeable Pipe provides excellent flexibility and soil adaptability. The all-direction permeable structure enables underground water to rapidly enter the pipe body while effectively preventing sand and soil particles from clogging the drainage channel. This integrated filtration and drainage system significantly improves underground water management efficiency.
The pipe is widely applied in tunnel seepage drainage, retaining wall back drainage, soft soil foundation treatment, roadbed drainage, landfill engineering, mining engineering, sports grounds, and municipal drainage systems. Because the pipe can withstand large external pressures while maintaining stable permeability, it is ideal for deep burial applications and complicated geological conditions.
The spring steel skeleton ensures excellent compression resistance and structural stability. Even under long-term underground pressure, the pipe maintains its drainage performance without deformation. Meanwhile, the soft structure allows the pipe to bend naturally according to terrain conditions, reducing installation difficulty and improving construction efficiency.
Flexible Permeable Pipe also performs well in corrosive environments. The external polypropylene covering and filter fabric provide excellent resistance to acid, alkali, biological erosion, and groundwater chemicals. This guarantees long service life and low maintenance costs for engineering contractors.
The product is available in multiple diameters and specifications. Customized production can be arranged based on drainage flow requirements, installation depth, and project conditions.
Technical Data Table
| Parameter |
FH50 |
FH80 |
FH100 |
FH150 |
FH250 |
FH300 |
| Pipe Diameter |
50mm |
80mm |
100mm |
150mm |
250mm |
300mm |
| Allowable Diameter Tolerance |
±2mm |
±2.5mm |
±3mm |
±3.5mm |
±6mm |
±8mm |
| Steel Coil Diameter |
1.6mm |
2.0mm |
2.6mm |
3.5mm |
5.0mm |
5.5mm |
| Coil Density |
55/m |
40/m |
34/m |
25/m |
19/m |
17/m |
| Filter Fabric Thickness |
0.30mm |
0.34mm |
0.36mm |
0.38mm |
0.60mm |
0.60mm |
| Elongation MD |
≥12% |
≥12% |
≥12% |
≥12% |
≥12% |
≥12% |
| Elongation CMD |
≥12% |
≥12% |
≥12% |
≥12% |
≥12% |
≥12% |
| Water Permeability |
≥0.1cm/s |
≥0.1cm/s |
≥0.1cm/s |
≥0.1cm/s |
≥0.1cm/s |
≥0.1cm/s |
| Equivalent Aperture O95 |
0.06–0.25mm |
0.06–0.25mm |
0.06–0.25mm |
0.06–0.25mm |
0.06–0.25mm |
0.06–0.25mm |
| Compression Resistance |
4400N/m |
6000N/m |
7200N/m |
8000N/m |
10400N/m |
12000N/m |
Why Choose Our Flexible Permeable Pipe
- Full Range Water Permeability
The pipe allows rapid groundwater penetration from all directions while maintaining efficient filtration performance.
- Superior Durability
Strong resistance to underground corrosion, soil chemicals, biological erosion, and environmental aging.
- Excellent Engineering Adaptability
The flexible structure easily adapts to curved installations and uneven foundation settlement conditions.
- Reliable Compression Performance
The reinforced steel coil support provides excellent load-bearing capacity in deep drainage projects.
- Lower Installation Cost
Easy transportation and fast installation help contractors reduce labor costs and construction time.
- OEM And Custom Manufacturing
Customized diameters, roll lengths, packaging, and filtration specifications are available for distributors and engineering contractors worldwide.
FAQ
What materials are used in Flexible Permeable Pipe
The pipe mainly consists of spring steel wire, nonwoven filter fabric, and polypropylene filament outer covering materials.
Can the pipe be installed in curved drainage systems
Yes. The flexible structure allows easy bending and adaptation to curved tunnels, slopes, and underground drainage channels.
Is the product suitable for landfill drainage
Yes. Flexible Permeable Pipe is commonly used in landfill leachate collection and underground seepage drainage systems.
What is the service life of the pipe
Under normal engineering conditions, the service life can exceed 50 years due to its corrosion-resistant materials and durable structure.
Can customized specifications be produced
Yes. We support customized diameter, length, filter fabric density, and packaging requirements according to project demands.
