Basic Info.
Model NO.
I-7
Shape
Round
Connection Method
Welding
Usage
Asphalt, Lubricants, Solvent, Fuel, Petroleum Coke
Application
Base Oil, Derivatives, Industrial Lubricant, Oil
Transport Package
Standard Package
Specification
DN20-DN1400
Trademark
OEM
Origin
Hebei China
HS Code
7307930000
Production Capacity
50000ton/Year
Product Description
Insulation steel pipes are widely used in liquid and gas transmission pipe networks, chemical pipe insulation projects in petroleum, chemical, central heating and heating networks, central air-conditioning ventilation pipes, and municipal engineering. High-temperature prefabricated direct-buried thermal Insulation steel pipe is a direct-buried prefabricated thermal Insulation steel pipe with good thermal insulation performance, safety and reliability, and low construction cost.
Specification
1. The pre-insulated steel pipe coated with high density polyurethane foam can resistant the temperature up to 140°c
2. With the corrosion resistant HDPE jacket pipe can make the pipe directly buried underground without trench.
3. Different size pipe and pipe fittings can service for different heating and cooling project.
4. The polyurethane foam thickness can be designed from 26.5-83mm or more.
Applications-Pre-insulated pipe system are used by the chemical, pharmaceutical, petro-chemical and food industries for the transport of:
- District heating networks
- District cooling networks
- Chilled water, Drinking water, Waste water, Cooling water, Hot water
- Steam & condensate lines
- Process fluids
- Refrigerants
- Chemicals
- Oil
Part 1: Carrier pipe (Inside): Stainless steel or Carbon steel
Part 2: Insulating layer (Medium): Polyurethane foam (PUR Form) (High insulation qualities compared to mass and volume)
Part 3: Protective jacket (Outside casing): Plastic or steel (Polyethylene (PEH), High Density Polyethylene (HDPE), Galvanized, Aluminum etc)
Pos: The choice of carrier pipe, foam type and foam thickness, as well as the material for the jacket, is made by the customer, who can also choose to supply carrier pipes for the project.
Advantages: impact-proof, watertight, resistant to salt and chemicals, hygienic and non-corrosive
| Materials | ||
| Item | Material | Notes |
| Service pipe/Carrier pipe | Steel Pipe | API 5L PSL-1: GR.B X42, X46, X52, X60, X70 API 5L PLS-2: ISO3183-L245, L290, L320, L360, L415, L485 |
Insulation | Polyurethane foam (PUR) Nominal Density of 60¹+15-15 kg/m³ | Compressive Strength: ≥ 0.300 Mpa |
| Thermal Conductivity: ≤ 0.029 W/m·K@50ºC | ||
| Closed Cell Content: ≥90% | ||
| Water Absorption: <5% | ||
| Insulation Jacket | High-density polyethylene (HDPE) | As technical parameter |
| Description | polyurethane thermal insulation steel pipe |
| Wall thickness | 0.5mm-16mm |
| Length | 1m-12m or customized |
| Outer Diameter | 0.405-80 inch or 10.3mm - 2032mm |
| Insulation | PUR Foam |
| Operating temperature | Up to 140ºC |
| Standard & Grades | API 5L PSL1/ PSL2, ASTM A53,ASTM A252,GB/T9711.1,GB/T3091,SY/T 5037-2012,DIN1626,EN10219,EN10217 |
| Ends | 30~35° |
| Quality control | 100% X-Ray inspection/ 100%X 100% Hydraulic Pressure test/ 100% 100% Ultrasonic inspection / 100% |
| Lining | Epoxy , cement motar, and according to customers requirement |
| Operating pressure | <1.6Mpa (Equivalent to PN 25? 25bar to be confirmed) |
| Laid way | Buried, overhead, trench |
| Insulation material | Fluoride-Free water foamed rigid polyurethane foam material (foam density: 60kg/m3-80kg/m³) |
| Inner surface tension of the high density polyethylene pipe | ≥50dy/cm |
CONSTRUCTION SITE
PIPELINE AND PICTURES OF PRODUCTS
