LUOYANG LAKO MAI NA GUNU TECH CO., LTD

HDPE Corrugated Pipe In Underground Drainage Systems
VEIKA E VAKARAUTAKI
Ivakamacala
Introduction of HDPE Double-Wall Corrugated Pipe
HDPE (high density polyethylene) double wall corrugated pipe is a composite structure pipe manufactured by advanced co-extrusion technology, and its unique design includes smooth inner wall and corrugated outer wall. This innovative structure gives it both high strength and flexibility, making it the preferred pipe material for modern municipal engineering, agricultural irrigation, industrial drainage and other fields.
Product structure Features
Double-layer composite structure: the inner wall is smooth (thickness 1.5-3mm) to ensure water flow efficiency, and the outer wall is corrugated (peak height 15-40mm) to enhance the ring stiffness
Material science breakthrough: Using PE100 grade primary high density polyethylene, density ≥0.95g/cm³, melting index 0.3-0.5g/10min
Innovative connection system: double selection of plug and insert electrothermic connection (DN200-DN1200) and clamp connection (DN150 or less)

Details of HDPE Double-Wall Corrugated Pipe
1. Excellent physical properties
Compressive strength: SN8 grade products can withstand a pressure of ≥8000N/m², equivalent to 4 meters of soil cover load
Impact resistance: Impact strength ≥30kJ/m² at 23℃ (ASTM D256 standard)
Flexibility: the bending radius can reach 20-25 times the diameter of the pipe (DN300 pipe minimum bending radius of 6 meters)
2. Long service life
Laboratory accelerated aging tests show that the service life can reach more than 50 years
Uv resistant formula (2.5-3% carbon black masterbatch added) ensures outdoor performance
3. Environmental protection and economic benefits
The weight is only 1/8 of the concrete pipe, reducing the transportation and installation cost by more than 40%
The inner wall friction coefficient is 0.009 (27% lower than the concrete pipe), and the lifting velocity is 15-20%
4. Intelligent installation system
Smart fitting with RFID chip (optional)
Millimeter-level docking accuracy with dedicated welding equipment (output power 4-10kW)
Specifications of HDPE Double-Wall Corrugated Pipe
| Nominal diameter (mm) | Ring stiffness class(kN/m²) | Standard length (m) | Working pressure (MPa) | Applicable temperature range (° C) | Connection method |
| DN200 | SN4/SN8 | 6/9/12 | 0.2-0.6 | – 40 ℃ ~ + 60 °C | Electrothermy |
| DN300 | SN8 / SN12.5 | 6/9/12 | 0.2-0.6 | – 40 ℃ ~ + 60 °C | Electrothermy |
| DN400 | SN8 / SN12.5 | 6/9/12 | 0.2-0.6 | – 40 ℃ ~ + 60 °C | Electrothermy |
| DN500 | SN12.5 / SN16 | 6/9/12 | 0.2-0.6 | – 40 ℃ ~ + 60 °C | Electrothermy |
| DN600 | SN12.5 / SN16 | 6/9/12 | 0.2-0.6 | – 40 ℃ ~ + 60 °C | Electrothermy |
Technical Parameter
Ring stiffness test standard: ISO 9969
Hydraulic test pressure: 1.5 times the working pressure for 1 hour without leakage
Longitudinal retraction rate: ≤3% (110℃±2℃ environment test)

HDPE Double-Wall Corrugated Pipe Applications
1. Municipal engineering
Urban stormwater management system: can handle a maximum instantaneous flow of Q=5m³/s (DN1200 pipe)
Sewage pipe network: resistant to chemical corrosive environment with pH 2-12
Cable protection sleeve: passed 10kV/1min voltage test
2. Agricultural irrigation
Drip irrigation system: with Φ16mm branch pipe to achieve precision irrigation
Drainage culvert: Slope 0.1-0.3% can achieve artesian drainage
3 Industrial applications
Plant drainage: Through ISO/TR 10358 chemical corrosion resistance certification
Mine drainage: the maximum working pressure can withstand 0.8MPa
4. Special environment
Frozen soil area: -40℃ low temperature impact test without cracks
Coastal areas: through ASTM G154 2000 hours salt spray test
Embalaje y envío
Depende en los productos y qty,Eda rawa ni cakava na vakavodoki ni coiling,rolo,vakavodoki ni iyaya,kato se kato,kei na so tale.
Vakauta:Ena wasawasa,sitimanivanua,ena cagi se me vaka na kerekere ni kasitama.
iTukutuku ni Kabani

Luoyang Datang Energy Tech Co., Ltd. is a leading Chinese manufacturer specializing in high-quality plastic pipes and fittings. Equipped with state-of-the-art automated production lines and supported by a team of 200 professionals, we offer an extensive product line comprising over 150 types of plastic pipes and fittings designed for water supply and drainage systems, gas transmission, and floor heating systems. Our main products include PVC Pipes and Fittings, PE (HDPE) Pipes and Fittings, PPR Pipes and Fittings, and PEX Floor Heating Pipes.
Should you have any inquiries regarding our PVC pipe,PE pipe & PPR pipe, please do not hesitate to contact us!
Tel.:0086-183 3790 0677
Wechat: 0086-183 3790 0677
Whatsapp: 0086-183 3790 0677
Imeli: volivolitaki@paipo kei na iyaya.net
Na ivakarau ni sausaumi
T/T,L/C ena rai,Iunioni ni Tokalau & Pepa,kei na so tale.
FAQ of HDPE Double-Wall Corrugated Pipe
Q1.: What are the advantages compared with traditional concrete pipe?
The weight is reduced by 87% and the installation efficiency is increased by 3 times
2-3 times longer service life (50 vs 20 years)
More than 35% reduction in integrated engineering costs
Q2.: How to ensure the tightness of pipe connections?
Intelligent temperature control system (200-230℃ precise control) is adopted for the electrothermic connection.
Triple sealing guarantee: welding surface + rubber ring + heat shrinkable sleeve
Q3.: What is the maximum buried depth of the pipe?
Grade SN8: Recommended burying depth ≤4 meters
Grade SN16: Recommended burying depth ≤8 meters
Special enhanced type can be customized to 12 meters buried depth
Q4.: Is trenchless construction supported?
DR17.5 class pipe jacking model is available
Maximum jacking length up to 200 m (DN600 tube)
Q5.: How to check the product quality?
Third party test report (SGS/BV, etc.)
Material traceability certificate (PE100 resin batch number)
Factory water pressure test record
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- Veivosaki: +86 18337900677






