Pre-insulated Steel Pipes For Heat Networks
The heat network pre-insulated steel pipe is composed of seamless steel pipe (working steel pipe), silicone high temperature resistant coating, sliding bracket, high temperature resistant glass wool, aluminum foil reflective layer, air insulation layer, coated steel pipe, and winding glass fiber corrosion layer (or epoxy Coal pitch coating corrosion layer) composition.
The thicker the pre-insulated straight pipe insulation layer, the smaller the heat dissipation loss of the pipe, saving fuel, but as the thickness increases, the investment cost of the insulation structure will also increase.
Special insulated steel pipes for thermal pipe networks are widely used in urban central heating, electric power, chemical industry and other fields.
| Property/Specification | Description |
|---|---|
| Material | Carbon steel, stainless steel, or other suitable materials |
| Outer Diameter | Range from DN15 to DN1200 or as per customer's requirement |
| Insulation Material | Glass fiber, polyurethane, or other suitable materials |
| Insulation Thickness | Depends on the desired heat retention and operational temperature |
| Jacketing Material | Polyethylene, polypropylene, or other protective materials |
| Corrosion Protection | Fusion Bonded Epoxy (FBE), 3LPE, or other coatings for corrosion resistance |
| Application | Heating networks, district heating systems, industrial piping, etc. |
3PE anti-corrosion coating steel pipes
Pre-insulated steel pipe for heating network
All requirements of standards EN 253, EN 448, EN 488 and EN 489.
Pipeline running parameters:
Insulation standard: EN 253
Standard: API 5L, ASTM A53/A106/A333, EN 10216-2 P235GH/P265GH
Outer diameter: 21.3 - 813mm
Length: 5.8m, 6m, 11.8m, 12m
The maximum operating temperature is 142°C (150°C short-term), the maximum operating overpressure is 2.5 MPa, and the service life is 30 years. PUR foam insulated pipes with heat resistance up to 165°C available on request.
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