1. Home
  2. Products
  3. Central Heating / Central Cooling Pipeline
  4. "Pipe in Pipe" Process Polyurethane Pre-insulated Composite Plastic Pipe for Underground
'Pipe in Pipe' process Polyurethane pre-insulated composite plastic Pipe for underground

"Pipe in Pipe" Process Polyurethane Pre-insulated Composite Plastic Pipe for Underground

  • Application Range

The thermal insulation pipe is practical for domestic hot water delivery system with working pressure no higher than 1.0mpa. Insulation pipe is used in domestic hot water transportation system whose working temperature is not higher than 100 ℃. The working temperature of PP-R working tube is not higher than 80 ℃, and the maximum working temperature is not higher than 90 ℃. The working temperature of PVC-C working tube is not higher than 70 ℃, and the maximum working temperature is not higher than 80 ℃. The working temperature of PE-RT working tube is not higher than 80 ℃, and the maximum working temperature is not higher than 90 ℃. Laying mode: mainly used for direct buried, can be used for overhead pipelines.

  • Service Pipe

The working pipe is polypropylene(PP-R) The working pipe is chlorinated polyvinyl chloride(PVC-C) The working pipe is heat resistant polyethylene(PE-RT) The working pipe is polybutylene(PB)

Areas of application

For regional heating transportation system Used in domestic hot and cold water transportation system Used in Gas transportation network and central air conditioning ventilation pipe For drinking water pipeline system Used in geothermal water direct supply pipeline

Production specifications: can be customized according to different requirement.

  • Standard

GB/T 18742.1-2002

GB/T 18993.2-2003

GB/T 28799.2-2012

  • Product Advantages

In the heat preservation pipe industry, plastic instead of steel has become a reality in the field of heating secondary pipe network transportation.

1. Long service life

Under the normal operation conditions, the service life of the pipeline can reach 50 years, which is more than three times of the service life of the steel pipe.

2. Heat preservation performance advantage

The thermal conductivity is only 1/300 of the steel pipe, and the heat-insulating and cold-keeping effect is good; the heat-insulating layer adopts a rigid polyurethane foaming material, and has the characteristics of high closed porosity, good thermal insulation performance, low water absorption and the like, and is an energy-saving novel product with excellent heat preservation performance, and is particularly suitable for a heating system in the north. And has automatic thermal compensation function to realize real no-compensation.

3. Excellent corrosion resistance

With the exception of a few oxidants, it can withstand the erosion of a variety of chemical media.And has good acid and alkali resistance, can be suitable for heating, cooling, water supply and drainage and other working conditions.

4. Easy and fast installation

Available hot melt or electric melting connection.It still works quickly in a narrow space.The joint surface is melted with the pipe, safe and free of leakage, the strength is higher than the body, and the life is the same as that of the pipe.

5. Short construction period and low cost

It can be buried underground directly. the excavation area is small. the overall weight of the pipe is light, which is only 1 / 8 of the steel pipe, which is convenient for transportation and lower freight, and can be pre-assembled to speed up the construction progress, greatly shorten the construction cycle and reduce the comprehensive cost.

6. Small hydraulic loss and high thermal efficiency

The inner wall is smooth, no scaling, and the roughness is only 1/70 of the steel pipe.It makes the fluid have good liquidity and large flow rate, the hydraulic loss is very small, and the heat transfer efficiency is higher.

7. Resistance to low temperature impact, resistance to freezing cracking

With excellent low-temperature resistance, it will not freeze at 30-40℃. It can maintain excellent impact resistance. It completely solves the problem of low temperature brittleness of cold and hot water transmission pipelines and greatly reduces the later maintenance cost.

8. Very high stress cracking resistance

The pipeline is flexible and elastic, will not be brittle because of stress, excellent scratch resistance, has the ability to resist the damage of the external environment, and ensures the safety of the pipeline in the whole life cycle.

9. Environment-friendly and energy-saving

Recyclable, energy saving and environmental protection, low energy consumption in the production process of plastic materials, is environmentally friendly material; pipe life is long, three times as much as steel pipe, can reduce repeated excavation, repeated replacement of pipelines, reduce carbon emissions.

10. Environment beautification and urban planning

Pipe buried directly in underground without hot (cold) pollution, nor affect the beautification and design planning of the ground environment, is the choice for the construction of modern cities and towns, the beautification of the city and the apartment environment of the community.

Welcome to send your message to us
Product Name
Your Name