FRP Epoxy Pipe
Product Description
FRP epoxy pipe is formally known as Glass Fiber Reinforced Epoxy (GRE) pipe. It is a high-performance composite material piping, manufactured using a filament winding or similar process, with high-strength glass fibers as the reinforcing material and epoxy resin as the matrix. Its core advantages include outstanding corrosion resistance (eliminating the need for protective coatings), light weight combined with high strength (simplifying installation and transport), extremely low thermal conductivity (providing thermal insulation and energy savings), and a smooth, non-scaling inner wall. These qualities make it an ideal replacement for traditional piping in sectors such as petroleum, chemical, marine engineering, electrical insulation, and water treatment.
Product Features
The FRP Epoxy Pipe (Glass Fiber Reinforced Epoxy, or GRE) offers a superior combination of properties compared to traditional materials:
1. Exceptional Corrosion Resistance
- Chemical Immunity: Highly resistant to a wide range of corrosive media, including acids, alkalis, salts, sewage, and seawater.
- Maintenance-Free: Requires no internal or external protective coatings or cathodic protection, fundamentally eliminating corrosion-related maintenance and risk.
2. Light Weight and High Strength
- Reduced Density: Weighs only 1/4 to 1/8 of steel pipe, drastically simplifying logistics, lifting, and installation, which lowers overall project costs.
- Superior Mechanical Strength: Possesses high tensile, bending, and impact strength, capable of handling high operating pressures and external loads.
3. Excellent Hydraulic Characteristics
- Smooth Bore: The interior surface has a very low friction factor, significantly reducing fluid head loss and pumping energy consumption compared to metal pipes.
- Non-Scaling: The smooth wall resists the adherence of scale, sediment, and bio-fouling (such as marine growth), maintaining high flow efficiency over time.
4. Thermal & Electrical Properties
- Thermal Insulation: Features extremely low thermal conductivity (about 1% of steel), providing excellent insulation to minimize heat loss or gain for the conveyed fluid.
- Electrical Insulation: Offers superior electrical insulation properties, making it safe and suitable for use in power and communication environments.
5. Durability and Low Life-Cycle Cost
- Long Service Life: Designed for a service life of 25 years or more under normal operating conditions.
- Minimal Maintenance: Due to its corrosion and scaling resistance, the system requires virtually no routine maintenance, resulting in a low overall life-cycle cost.
Product Specifications
|
Specification |
Pressure |
Wall Thickness |
Pipe Inner Diameter |
Maximum Length |
|
|
（Mpa） |
(mm) |
(mm) |
(m) |
|
DN40 |
7.0 |
2.00 |
38.10 |
3 |
|
8.5 |
2.00 |
38.10 |
3 |
|
|
10.0 |
2.50 |
38.10 |
3 |
|
|
14.0 |
3.00 |
38.10 |
3 |
|
|
DN50 |
3.5 |
2.00 |
49.50 |
3 |
|
5.5 |
2.50 |
49.50 |
3 |
|
|
8.5 |
2.50 |
49.50 |
3 |
|
|
10.0 |
3.00 |
49.50 |
3 |
|
|
12.0 |
3.50 |
49.50 |
3 |
|
|
DN65 |
5.5 |
2.50 |
61.70 |
3 |
|
8.5 |
3.00 |
61.70 |
3 |
|
|
12.0 |
4.50 |
61.70 |
3 |
|
|
DN80 |
3.5 |
2.50 |
76.00 |
3 |
|
5.5 |
2.50 |
76.00 |
3 |
|
|
7.0 |
3.00 |
76.00 |
3 |
|
|
8.5 |
3.50 |
76.00 |
3 |
|
|
10.0 |
4.00 |
76.00 |
3 |
|
|
12.0 |
5.00 |
76.00 |
3 |
|
|
DN100 |
3.5 |
2.30 |
101.60 |
3 |
|
5.5 |
3.00 |
101.60 |
3 |
|
|
7.0 |
4.00 |
101.60 |
3 |
|
|
8.5 |
5.00 |
101.60 |
3 |
|
|
10.0 |
5.50 |
101.60 |
3 |
|
|
DN125 |
3.5 |
3.00 |
122.50 |
3 |
|
5.5 |
4.00 |
122.50 |
3 |
|
|
7.0 |
5.00 |
122.50 |
3 |
|
|
DN150 |
3.5 |
3.00 |
157.20 |
3 |
|
5.5 |
5.00 |
157.20 |
3 |
|
|
7.0 |
5.50 |
148.50 |
3 |
|
|
8.5 |
7.00 |
148.50 |
3 |
|
|
10.0 |
7.50 |
138.00 |
3 |
|
|
DN200 |
3.5 |
4.00 |
194.00 |
3 |
|
5.5 |
6.00 |
194.00 |
3 |
|
|
7.0 |
7.50 |
194.00 |
3 |
|
|
8.5 |
9.00 |
194.00 |
3 |
|
|
10.0 |
10.50 |
194.00 |
3 |
|
|
DN250 |
3.5 |
5.00 |
246.70 |
3 |
|
5.5 |
7.50 |
246.70 |
3 |
|
|
8.5 |
11.50 |
246.70 |
3 |
|
|
DN300 |
3.5 |
5.50 |
300.00 |
3 |
|
5.5 |
9.00 |
300.00 |
3 |
|
| Note: The parameters in the table are for reference only and shall not serve as the basis for design or acceptance. Detailed designs may be prepared separately as required by the project. | ||||
Product Applications
- High-Voltage Transmission Lines: Used as protective conduits for underground or underwater high-voltage power cables.
- Power Plants / Substations: Employed to shield power cables and control cables within the station from environmental corrosion and mechanical damage.
- Telecommunication Cable Protection: Utilized as ducts to safeguard sensitive communication cables in base stations or fiber optic networks.
- Tunnels and Bridges: Installed for laying cables in environments that are difficult to navigate or feature complex conditions, such as corrosive or high-moisture settings.
In addition, FRP epoxy pipe (GRE) is widely utilized in industrial plants as process piping for conveying highly corrosive chemical liquids and wastewater. In oilfield development, it is used for high-corrosion applications like crude oil gathering lines, water/polymer injection lines, and CO2 injection. In fuel distribution, it is the ideal material for underground gas station pipelines and oil terminal jetties. Furthermore, it is the preferred choice for seawater cooling water, fire suppression lines, and the high-pressure and brine discharge lines in desalination plants.
