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Directly Buried PU Foam Pre Insulated Pipe for District Heating

Quantity:
SKU: 9174736213
Model: Polyurethane Insulated Pipe

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Product Details

Directly Buried PU Foam Pre Insulated Pipe for District Heating

Our directly buried polyurethane (PU) foam pre insulated pipe is engineered for district heating networks, delivering reliable thermal insulation and corrosion protection for buried pipelines. Designed for continuous operation at temperatures up to 120°C (peak 130°C) and pressures up to 2.5 MPa, this pipe ensures energy efficiency and long-term durability, with a service life of at least 30 years.

Key Selling Points

  • ✔ 120°C continuous operation – Maintains stable thermal performance for heating networks, with occasional peaks up to 130°C, ensuring consistent heat delivery.
  • ✔ 2.5 MPa working pressure – Suitable for reliable high-pressure district heating systems, ensuring safe and efficient operation.
  • ✔ 30-year service life – Engineered for long-term durability, reducing replacement and maintenance costs.
  • ✔ HDPE outer jacket & PU foam insulation – Provides excellent thermal insulation, waterproofing, and corrosion resistance for directly buried applications.
  • ✔ Industry certifications – ISO 9001:2015, CE (EN 448/253), and GOST 30732-2020 certified, ensuring compliance with international standards.
  • ✔ Proven project track record – Deployed in Cambodia, Jamaica, Mongolia, Uzbekistan, and Vietnam for cooling and heating supply, demonstrating global reliability.

Technical Specifications

ParameterValue
Maximum Continuous Temperature120°C
Peak Temperature (occasional)130°C
Maximum Working Pressure2.5 MPa
Service Life (at 120°C)≥ 30 years
Outer Jacket MaterialHigh Density Polyethylene (HDPE)
Insulation MaterialRigid Polyurethane Foam
Available Diameter RangeDN20 – DN1800 (per certifications)
CertificationsISO 9001:2015, CE (EN 448:2019, EN 253:2019), GOST 30732-2020

Models and Options

Available with different jacket materials to suit various installation environments:

  • HDPE (High Density Polyethylene) jacket – standard for directly buried applications.
  • Galvanized iron jacket – for above-ground installations requiring extra mechanical protection (as listed in product types).

Materials and Structure

The pipe features a three-layer structure:

  1. Service pipe (steel, per customer requirements) – conveys the medium.
  2. Rigid polyurethane foam insulation – provides thermal insulation and structural support.
  3. HDPE outer jacket – protects against moisture, corrosion, and mechanical damage.

Applications

Ideal for anti-corrosion, thermal insulation, and heat preservation in:

  • Heating networks (municipal, commercial, residential)
  • Cooling systems
  • Crude oil transportation pipelines
  • Industrial parks, cogeneration plants, urban pipe galleries

Customization

We offer customization in diameter, length, jacket material (HDPE or galvanized iron), and insulation thickness to meet project specifications. Please contact us with your requirements.

Case Study

In Cambodia, a bank project utilized 30km of our pre insulated pipes for cooling and heating supply, achieving stable operation over 2 years with excellent heat preservation. Similarly, a Jamaica hotel project, a Mongolia copper mine project, and a Uzbekistan municipal renovation project have all demonstrated reliable performance.

FAQ

1. What is the maximum continuous operating temperature?

The pipe can operate continuously at temperatures up to 120°C, with occasional peaks up to 130°C.

2. What is the maximum working pressure?

The maximum working pressure is 2.5 MPa.

3. How long is the service life?

Under continuous operation at 120°C, the service life is at least 30 years.

4. What certifications does the pipe have?

We hold ISO 9001:2015, CE (EN 448:2019, EN 253:2019), and GOST 30732-2020 certifications.

5. What diameters are available?

Diameter range from DN20mm to DN1800mm, as per our certifications.

6. What is the minimum order quantity?

Our MOQ is 500 meters.

7. Can the pipe be used for cooling applications?

Yes, it is widely applied in cooling systems, as evidenced by our projects in various countries.

Inquiry Information

For pricing, lead time, and technical specifications, please contact us:

  • Phone/WhatsApp: +86 18833358018
  • Email: xbinsulatedpipe@xingbang1995.com
  • Website: www.xingbanginsulatedpipe.com

Payment terms: 30% deposit, 70% before shipment. Delivery: FOB/CIF. Quality: pre-shipment inspection available.

Images

PU foam pre insulated pipe segment showing HDPE jacket and insulation layers Pre insulated pipe installation in a trench Cross-section of pre insulated pipe showing steel pipe, foam, and HDPE jacket