Cored Double-Wall Polyethylene Pipe (Carrytube)

The cored double-wall polyethylene pipe is one of the most important products in the field of water and wastewater infrastructure, urban wastewater collection networks, drainage systems, and heavy civil construction projects. Due to its special, engineered design, this pipe has become a very suitable replacement for concrete, metal, and PVC pipes in many projects.

The structure of this pipe consists of two layers:

  • A corrugated outer layer (cored) to withstand external pressures
  • A smooth inner layer for the smooth transmission of fluids

This combination gives the cored double-wall polyethylene pipe both high mechanical strength and fluid flow with minimal pressure loss.

Payesh Gostar Behin Andish Co. is a specialized supplier of various types of cored double-wall polyethylene pipe for civil construction, industrial, and urban projects throughout the country.

Structure of the Cored Double-Wall Polyethylene Pipe

Outer Layer (Cored)

The outer layer is designed in a corrugated shape so that it can withstand the pressures caused by:

  • Soil
  • Traffic load
  • Ground settlement
  • Dynamic loads

This design increases the ring stiffness of the pipe.

Inner Layer (Smooth)

The inner surface is completely smooth and uniform, which ensures that:

  • The wastewater flow moves without pressure loss
  • Sedimentation is reduced
  • Clogging along the pipe route is minimized

Technical Features of the Cored Double-Wall Polyethylene Pipe

High Ring Stiffness

These pipes have very high resistance against external pressures and are suitable for burial at various depths.

Suitable Hydraulic Performance

The smooth inner surface increases the flow velocity and reduces friction.

Chemical Resistance

It is completely resistant to acidic and alkaline materials, industrial wastewater, and corrosive environments.

Long Lifespan

If executed correctly, these pipes can have a useful life of more than several decades.

Light Weight

Compared to concrete and metal pipes, it is much lighter and has easier transport and installation.

Suitable Flexibility

It has very good performance against ground settlement and environmental vibrations.

Complete Sealing

Standard fittings prevent wastewater leakage and the entry of external water into the network.

Applications of the Cored Double-Wall Polyethylene Pipe

This pipe is used in a variety of projects:

Urban Sewer Network

The main application of this pipe is in urban wastewater collection and transmission systems.

Industrial Wastewater

It is used in factories and manufacturing units to transmit chemical and industrial wastewater.

Land Drainage

It is used in agricultural and civil construction projects to collect and convey excess water.

Surface Water

It is used in streets, highways, and thoroughfares to convey rainwater.

Civil Construction Projects

It has widespread use in tunnels, the metro, road construction, and urban infrastructure.

Cable Ducting

It is used to protect power, telecommunications, and fiber-optic cables.

Oil and Gas Industries

It is also used in industrial and refinery projects.

Advantages of Using the Cored Double-Wall Polyethylene Pipe

  • Reduced project execution costs
  • Reduced maintenance costs
  • Increased execution speed
  • High resistance in harsh conditions
  • Prevention of leakage and contamination
  • No corrosion or rusting
  • Stable long-term performance
  • Suitable for both heavy-duty and light projects
  • Reduced risk of pipe failure underground
  • Usability in various weather conditions

Specifications and Manufacturing Capability

The cored double-wall polyethylene pipe is not limited to one specific model or class and has the capability to be designed and manufactured according to the project’s needs. These pipes can be manufactured based on the following:

  • The type of project
  • The burial depth
  • The amount of applied load
  • The soil type
  • The environmental conditions
  • The flow rate

For this reason, in various projects, it is possible to use a custom design for each condition.

Types of Cored Double-Wall Polyethylene Pipe

These pipes generally include the following categories:

  • Double-wall polyethylene sewer pipe
  • Double-wall polyethylene drainage pipe
  • Corrugated polyethylene pipe
  • Heavy-duty industrial double-wall pipe
  • Light urban double-wall pipe

Sizes of the Double-Wall Polyethylene Pipe

These pipes are manufactured in a variety of sizes, from small diameters for urban projects to large diameters for industrial and infrastructure projects.

The selection of a suitable size depends entirely on:

  • The fluid volume
  • The type of project
  • The flow rate
  • The execution conditions

Price of the Cored Double-Wall Polyethylene Pipe

The price of this pipe depends on various factors:

  • The pipe diameter
  • The strength class (SN)
  • The weight per meter
  • The type of raw material (PE100 / PE80)
  • The ordered length
  • The project conditions
  • The transport cost
  • The type of fittings

Due to changes in the raw-material price, the final price needs a current inquiry.

Buying the Cored Double-Wall Polyethylene Pipe

When buying this product, the following should be considered:

  • The manufacturing standard
  • The quality of the raw material
  • The ring stiffness test
  • The type of project application
  • The installation conditions
  • The quality of the fittings
  • The manufacturer’s brand

The correct selection of the pipe has a direct effect on the network’s lifespan and reducing repair costs.

The cored double-wall polyethylene pipe is one of the most important infrastructure products in the water and wastewater industry, and due to its high strength, long lifespan, light weight, and suitable hydraulic performance, it holds a special place in civil construction and industrial projects.

As a modern replacement for traditional pipes, this pipe is used in urban wastewater projects, drainage, surface-water transmission, and various industries.