HDPE Double Wall Corrugated Pipe

HDPE double wall corrugated pipe has become the mainstream product in municipal, construction, and agricultural fields, replacing traditional concrete pipes, cast iron pipes, and PVC pipes.

Description

In addition to the characteristics of ordinary plastic pipes, such as good corrosion resistance, high insulation, smooth inner wall, and low flow resistance, HDPE double-wall corrugated pipes also have excellent ring stiffness, good strength and toughness, light weight, strong impact resistance, and are not easily damaged due to their special hollow ring structure.

Whatever your HDPE Double Wall Corrugated Pipe needs, we can meet them! Contact us today to discuss your requirements.

Product Features & Benefits

1.High strength, good compressive strength and impact resistance;

2.Good resistance to uneven settlement, suitable for soft soil and quicksand foundations;

3.Easy connection, leak-free joints;

4.Smooth inner wall, low friction, strong water permeability;

5.Corrosion resistant and pollution-free;

6.Lightweight, easy to handle, convenient to construct, and low overall project cost.

Product Specifications

Outer diameter series (mm)
Nominal outer diameter DN/OD	Average outer diameter d (em)	Average inner diameter d (im)	Inner wall thickness e (1)	Laminated wall thickness e	Minimum wall thickness of socket
110	109	90	0.8	1.0	2.5
160	159	143	1.0	1.2	3.6

Inner diameter series (mm)
Nominal inner diameter DN/ID	Average inner diameter d(im)	Inner wall thickness e2	Outer wall thickness e1	Laminated wall thickness e	Minimum wall thickness of socket
200	195	1.1	0.9	1.5	2.25
225	220	1.4	0.9	1.7	2.55
300	294	1.7	1.0	2.0	3.0
400	392	2.3	1.4	2.5	3.75
500	490	3.0	1.8	3.0	4.5
600	588	3.5	2.1	3.5	5.25
800	785	4.5	2.7	4.5	6.75

The company mainly produces products with ring stiffness grades of SN4 and SN8.
The product color is generally black.
The pipe length is generally 6m (flared) or 8m or 12m (straight), but can also be agreed upon by the supplier and the buyer. System fittings can be customized according to customer requirements, including elbows, tees, crosses, sleeves, etc., at various angles.

애플리케이션

Underground rainwater and sewage discharge in municipal engineering and residential areas;
Irrigation and drainage in farmland;
Drainage and transportation in sewage treatment plants and landfills;
Ventilation ducts in chemical plants and fluid transportation in chemical and mining industries;
Protective conduits for power and communication cables, etc.

자주 묻는 질문

Construction Precautions for HDPE Double Wall Corrugated Pipes？

Foundation Treatment: A gravel cushion layer (usually 10-15cm) is required to ensure even stress distribution at the bottom of the pipe.
Backfilling Requirements: Fine sand or original soil free of sharp objects should be backfilled within 50cm of the pipe sides and top, and compacted in layers.
Avoid Sun Exposure: Prolonged exposure to ultraviolet rays will accelerate aging; the pipe should be covered during storage and backfilled promptly after construction.
No Open Flames: HDPE is flammable; keep it away from welding, cutting, and other high-temperature operations at the construction site.

How to choose the right HDPE double-wall corrugated pipe specifications?

Choosing the appropriate HDPE double-wall corrugated pipe specification requires comprehensive consideration of the project application, burial conditions, load requirements, drainage flow rate, and relevant standards and specifications.

How much pressure can HDPE double wall corrugated pipe withstand?

HDPE double-wall corrugated pipe (high-density polyethylene double-wall corrugated pipe) is essentially a non-pressurized pipe used for gravity flow drainage. Its original design purpose is not to withstand internal pressure, but to resist the pressure of external soil and ground load (i.e., “external pressure”).