FRP pipe

FRP pipe is a lightweight, high-strength, corrosion-resistant non-metallic pipe made of resin (such as unsaturated polyester resin, epoxy resin, etc.) and glass fiber as the main materials through a special process. Its main features and applications are as follows:

Performance features

Corrosion resistance: FRP pipes have excellent corrosion resistance and can resist corrosion from various media such as acids, alkalis, salts and organic solvents. They are suitable for corrosive environments such as chemical industry and electroplating.

Lightweight and high strength: The specific gravity of FRP pipes is only 1/3 of carbon steel, but its specific strength is 2-4 times that of carbon steel, and it has high mechanical strength and pressure resistance.

Temperature resistance: FRP pipes can be used for a long time in the temperature range of -40°C to 70°C, and can still maintain normal operation even at high temperatures above 200°C.

Antifreeze performance: FRP pipes have good antifreeze performance and will not freeze and crack in low temperature environments below minus 20℃.

Low friction resistance: The inner wall is smooth, the fluid resistance is small, and the conveying efficiency is high, reducing pumping energy consumption and operating costs.

Anti-fouling and anti-rust: Because the surface is smooth and difficult to breed bacteria, fiberglass pipes do not need to be rust-proof or anti-fouling.

Application Areas

FRP pipes are widely used in many fields due to their unique properties:

Municipal engineering: used for urban water supply and drainage, sewage treatment, water supply network, etc.

Petrochemical industry: suitable for transporting corrosive media, such as crude oil, chemical products, etc.

Electric power industry: used for circulating water and cooling water transportation in power plants.

Agricultural irrigation: used for farmland irrigation and seawater transportation.

Environmental protection projects: used for desulfurization and denitrification pipelines, waste gas treatment, etc.

Other fields: such as natural gas transportation, seawater desalination, mining transportation, etc.

Category Type

Classification by production process:

Pure fiberglass pipes: made of synthetic resin as the matrix, glass fiber and its products as reinforcing materials, and made through special processes.

FRP sand-filled pipe: Quartz sand is added to the pure FRP pipe and made through a winding process, which has higher rigidity and lower cost.

FRP composite pipe: It adopts laminated type, with the inner layer made of other materials (such as plastic, cement and steel, etc.) and the outer layer is continuous fiber FRP layer.

Classification by purpose:

Desulfurization pipeline: used in flue gas desulfurization systems, with strong corrosion resistance.

Sand-filled pipe: suitable for large-diameter buried pipes, with good corrosion resistance and pressure resistance.

Pressure pipeline: used to transport high-pressure fluid, with high strength and pressure resistance.

Cable protection tube: used to protect cables with insulation and anti-corrosion properties.

Water pipeline: used to transport domestic water, seawater, sewage, etc., with good hydraulic properties and corrosion resistance.

Insulated pipes: used for transporting fluids that require thermal insulation and have good thermal insulation properties.

Ventilation duct: used in ventilation system, with good corrosion resistance and light weight and high strength.

Sewage pipe: used in sewage treatment system, with corrosion resistance and impact resistance.

Pipe jacking: used for pipe jacking construction, with high strength and corrosion resistance.