FRP Sand-filled Pipes

FRP sand-filled pipes are a new type of composite material pipes, mainly made of resin as the matrix material, glass fibers and their products as the reinforcing material, and quartz sand as the filling material.

Due to its excellent corrosion resistance, good hydraulic characteristics, light weight and high strength, large conveying flow, convenient installation, short construction period and low comprehensive investment, it has been widely used in the chemical industry, drainage projects and pipeline projects.

The application scope of FRP sand-filled pipes is very wide, including drinking water transportation pipes, sewage collection and transportation pipes, reclaimed water reuse pipes, municipal water supply and drainage pipes, seawater transportation pipes and other various buried pipes, etc. These pipes can resist the long-term corrosion of various chemical media such as acids, alkalis, salts, organic solvents, seawater and sewage, and have a long service life.

In terms of production technology, the production processes of FRP sand-filled pipes mainly include three important types: filament winding method, continuous filament winding method and centrifugal casting method. These processes have their own characteristics. For example, the continuous winding method has the advantages of convenient process control, low labor intensity, low pollution, good working environment, high production efficiency and stable pipe quality.

In addition, FRP sand-filled pipes also have good insulation performance, which can effectively prevent the conduction of current and heat. Therefore, they are widely used in power and heat transmission systems. Its heat resistance and cold resistance are also very good and it can work normally within the temperature range of -30℃ to 60℃.

FRP sand-filled pipes have become an ideal choice in many industries with their unique performance and wide application fields.