Update time:2024-05-27
Introduction to directly buried polyurethane insulated steel pipes:
A direct burial pre-insulated steel pipe is a specialized piping solution engineered for underground applications.
This type of pipe comes with integrated insulation and is encased in a protective outer shell, making it suitable for direct burial without the need for additional trenching or insulation installation.
The pre-insulated steel pipe is designed to effectively transport fluids while minimizing heat loss or gain, ensuring consistent temperature maintenance and energy efficiency. This solution finds application in various industries, including district heating, cooling systems, and oil and gas transportation, where underground installation and thermal performance are critical.
Its design simplifies installation processes and offers long-term durability, making it a reliable choice for efficient and secure subterranean fluid transport.
Insulated pipe structure:
Polyurethane insulation pipe specification table:
Steel pipe outer diameter (mm) | Steel pipe wall thickness (mm) | Outer protective tube outer diameter (mm) | Wall thickness of outer protective tube (mm) | Thickness of insulation layer (mm) |
33.4 | 2.5 | 90 | 2.5 | 25.8 |
48.3 | 3.0 | 130 | 3.0 | 37.85 |
60.3 | 3.5 | 120 | 3.0 | 26.35 |
73 | 4.0 | 160 | 3.0 | 39.5 |
88.9 | 4.0 | 180 | 3.0 | 41.5 |
114.3 | 4.0 | 180 | 3.0 | 28.85 |
141.3 | 4.5 | 225 | 3.5 | 37.35 |
168.3 | 4.5 | 250 | 3.9 | 36.35 |
219.1 | 6.0 | 315 | 4.9 | 41.95 |
273.1 | 6.0 | 365 | 5.6 | 39.95 |
323.9 | 7.0 | 420 | 7.0 | 41.05 |
355.6 | 7.0 | 500 | 7.0 | 65.2 |
406.4 | 7.0 | 530 | 7.8 | 54.8 |
457.2 | 8.0 | 580 | 8.8 | 53.4 |
508.0 | 8.0 | 655 | 9.8 | 65.5 |
609.6 | 8.0 | 760 | 11.1 | 67.2 |
711.2 | 8.0 | 850 | 12.0 | 61.4 |
Features:
1. Reduce project cost.
2. Low heat loss, saving energy.
3. Anti-corrosion, good insulation performance and long service life.
4. It occupies less space, is quick to construct, and is conducive to environmental protection.
5. Safety.
Application areas:
Application scope of polyurethane insulated pipes: Insulated pipes are widely used in liquid and gas transportation pipe networks, chemical pipelines, insulation projects, petroleum, central heating networks, central air conditioning ventilation ducts, municipal projects, etc.