FRP Pipe (Fiber Reinforced Plastic Pipe)is is a high-performance composite pipe made by combining glass fiber as the reinforcement material with synthetic resin (such as epoxy resin, polyester resin, etc.) as the matrix material through composite processes like winding or pultrusion.

1. Core Components of FRP Pipes

• Reinforcement Material:

Primarily glass fiber (e.g., glass cloth, felt, yarn, etc.), which provides the pipe with high tensile strength and stiffness, serving as the main component bearing external forces.

• Matrix Material:

Usually various synthetic resins (such as unsaturated polyester resin, epoxy resin, vinyl ester resin, etc.). The resin binds the glass fibers together, shapes and protects them, while also giving the pipe excellent corrosion resistance, heat resistance, and electrical insulation.

• Other Auxiliary Materials:

Some special FRP pipes (like sand-lined pipes) incorporate quartz sand as a core layer to significantly enhance the pipe's stiffness and compressive strength, reducing costs and making them more suitable for large-diameter underground drainage pipes, among other applications.

2. Main Application Areas of FRP Pipes

Leveraging their unique properties, FRP pipes play an irreplaceable role in the following fields:

• Municipal Water Supply and Drainage Engineering: Urban water supply, sewage collection and discharge, reclaimed water reuse, rainwater pipelines, etc.

• Chemical and Petroleum Industries: Transporting various corrosive chemicals, oil and gas, process fluids, oilfield injection water, etc.

• Power Industry: Circulating cooling water pipes in thermal power plants, slurry transportation pipes in desulfurization systems, cable protection pipes, etc.

• Environmental Protection and Wastewater Treatment: Corrosive medium transportation in wastewater treatment plants, exhaust gas extraction systems, etc.

• Food and Pharmaceutical Industries: Transporting certain food media, brewing ingredients, or process water for pharmaceuticals, requiring the use of food-grade resins.

• Marine and Shipbuilding Engineering: Seawater desalination, ship ballast water pipelines, dock water transmission, and other applications requiring corrosion resistance in seawater.

3. Key Characteristics and Advantages of FRP Pipes

The widespread use of FRP pipes is due to their outstanding comprehensive performance: