Diameter
DN/ID
(mm)

Minimum mean
internal meridian
Dim MIn(mm)

Suggestion connection length(mm)

Minimum laminated wall thickness(mm)

Minimum inner wall thickness
(mm)

200

198

54

1.5

1.1

300

296

65

2.0

1.7

400

394

74

2.5

2.3

500

492

85

3.0

3.0

600

588

96

3.5

3.5

800

785

118

4.5

4.5

1000

985

140

5.0

5.0

1200

1185

162

5.0

5.0

HDPE double wall corrugated pipe is a new type of light weight pipe with high density polyethylene as the main raw material , extruded from both inside and outside. It is one-time molding pipe, has many outstanding characteristics such as light weight, sound insulation,shock absorption, high pressure resistance, good toughness, fast construction, long time service time. Because of convenient and reliable connection, it is widely used at home and aboard.

Project

Requirement

Ring stiffness KN/m²

SN≥4KN/m²

SN≥8KN/m²

Impact property(TIR)/%

TIR≤10%

Ring flexibility

Smooth style, no reverse bending, no cracking, 
no separation of the two walls

Creep property

≤4

Oven test

No bubbles, no layers, no cracks

Seal test

Pressure 0.05MPa, constant temperature 15min, 
no leakage, no fracture

Application

1,Municipal drainage and sewage pipeline system.
2, Buried drainage and sewage pipes in residential area.
3,Water system for agriculture irrigation and drainage.
4, Chemical Industry and mining for fluid transportation and ventilation.
5,Overall processing of pipeline inspection wells; highway embedded pipelines;
6,High-voltage cable, post and telecommunications cable protection sleeve, etc.

Product Introduction

High-Density Polyethylene (HDPE) Double-Wall Corrugated Pipe is a lightweight, high-strength drainage pipe manufactured through advanced dual-wall co-extrusion technology using HDPE material. Its unique corrugated outer wall and smooth inner wall design provide high ring stiffness, excellent flexibility, and strong corrosion resistance, making it widely applicable in municipal drainage, road drainage, industrial wastewater discharge, and other fields.

Product advantages

1.High Strength & Stiffness

Excellent ring stiffness (SN4-SN16) withstands heavy loads and deep burial.

2.Superior Corrosion Resistance

Resists chemicals, acids, and alkalis, ensuring a 50+ year service life.
 

3.Lightweight & Easy Installation

Weighs only 1/10 of concrete pipes; simple socket connection with rubber seals reduces installation time and cost.

 
4.Smooth Flow Efficiency
Smooth inner wall (Manning coefficient *n*=0.009) enables 40% higher flow capacity than conventional pipes.

5.Flexibility & Impact Resistance

Absorbs ground movement and vibrations, suitable for seismic zones and unstable soils.

6.Environmentally Friendly

Made from 100% recyclable HDPE; manufacturing consumes 50% less energy than traditional pipes.

7.Leak-Free Joints

Integrated rubber ring seals ensure tight, leak-proof connections.

8.Wide Applications

Ideal for municipal drainage, road engineering, industrial wastewater, agricultural irrigation, and airport/port infrastructure.

Product Display

Application areas

1.Municipal Drainage Systems

Stormwater management and sewage transportation in urban areas.
2.Road & Highway Infrastructure

Subsurface drainage for roads, highways, and railway embankments.
3.Industrial Wastewater Discharge

Chemical-resistant piping for factories, industrial parks, and wastewater treatment plants.
4.Agricultural Drainage & Irrigation

Field drainage systems and water conservation projects.
5.Airport & Port Drainage

Runoff drainage for airports, seaports, and logistics hubs.
6.Land Development & Civil Engineering

Residential/commercial estate drainage, sports field drainage, and erosion control.
7.Mining and Quarrying Operations

Dewatering and slurry transport in mining areas.
8.Renewable Energy Projects

Drainage for solar farms, wind power facilities, and hydropower stations.

Jinan Apex lmport and Export Trading Co., Ltd is engaged in manufacturing, supplying and exporting an unparalleled range of PEX pipes, PB pipes, EVOH PEX/PERT/PB oxygen barrier pipe, PPR pipes, HDPE pipes, PVc pipes and the corresponding pipe fittings.

APEX was founded in 2005.We has been developing into a market leader in both the production and export of quality plumbing solutions in Asia. Within our manufacturing plant, we have implemented a quality management system which ensures zero defects. Our extremely strict quality control system is performed so that the entire production process, from the supply of raw materials to the delivery of finished products, is completely monitored. The test results are all recorded and fuly compliant with 1SO9001 standard. With the support of strong technical expertise and modern business management systems, the company has been awarded a vast aray of worldwide industry-recognized certifications, such as American NSF, UPC certification, American, Canadian certification, British WRAS, INTERTEK certification, Australia WATERMARK, StandardsMark certification, French ACS, BV certification, Swiss SGS certification, German KYW, TÙ V certification, . the European Union' S CE, ROHS, REACH certi.fication, etc.

APEX use only the finest raw materials which are imported from the top international suppliers. This ensures the quality of plastic pipes from the onset. Our raw material suppliers are well-known companies, including Mitsui Chemicals, Kuraray,CONSTAB, Dow, Hyundai, Hyosung, LG, SK, etc.

At APEX, our production capacity reaches 35000 tons of plastic products each year. All our production lines have been outfitted with the most advanced high-speed pipe extrusion machines. The entire production line is controlled by a Barton PLC system. lt comes with a high-precision, lost-in-weight feed system.Iin addition, the production lines are all equipped with cutting-edge test facilities. This ensures we can produce high-quality pipes efficiently.

If you require a reliable, high-efficiency and cost-effective plumbing system, APEX is your optimal choice! APEX is verv eader to earn vour business and become vour lond-standind blumbind solutions provider

Q1:Can l get a sample?
Yes, we can provide you with free samples.

Q2: Can l use my own logo or design on the products?
Yes, we offer OEM/ODM services; your logo and design can be made on the products.

Q3: Do you have a factory?
Yes, we have a factory in Weifang, Shandong Province. You are welcome to visit our company and factory.We can provide OEM/ODM services to our customers.

Q4: What is your factory's production capacity?
We can produce 5,000 tons per month. You can rest assured when placing your order with us.

Q5:When will the goods be shipped?
In-stock products can be shipped within one week. Customized products will be shipped according to customer requirements. We will inform you of the specific shipping time before confirming the order.