1.The performance and advantages

FRP sand inclusion pipe due to design a sand inclusion layer on the wall of the pipe, it compared with the pure glass pipe, not only has light quality, high intensity, and is buried pipe of high stiffness and low cost, so the advent of since they generally welcomed. In the transport of water or other liquids, the application is increasing, according to the relevant information, the United States in the middle of the 90's has been installed 160 thousand kilometers of glass fiber reinforced plastic pipeline, the European countries are newly laid large and medium water, sewage pipes, glass fiber reinforced plastic pipe length of about 35%~50%. In Japan, the pipe also accounts for a considerable share of the market, the length of its installation has exceeded the pipe and concrete pipe. In the Middle East, almost all the large and medium-sized water delivery, sewage, seawater desalination pipeline all for the FRP pinch pipe.

2.Features

2.1Light, high, strength, high rigidity

    FRP clip sand pipe is made of inner village layer, winding layer, resin mortar layer and outer coating layer, it is 1.7~2.1, 1/5, 1/4, 3/4. Because of the fiber winding enhancement structure, the fiber content of the layer is 70%, which can meet the strength requirement of the pipeline. In addition, because the resin mortar layer is in the middle of the winding enhancement layer, it can greatly improve the rigidity of the pipe without reducing the strength.

2.2Anticorrosion performance

    The corrosion resistance of the FRP clip sand pipe is mainly dependent on the corrosion resistance of the glass fiber reinforced plastic pipe is made of fiber reinforced resin layer, and the resin content is 80%. Can ensure that the pipe corrosion, leakage prevention.

2.3Excellent hydraulic performance

    FRP sand inclusion pipe inner surface is very smooth, roughness coefficient is small, not only is the new smooth, attachment and used for a number of years, the inner wall is smooth unabated, seaweed and other aquatic derivatives. Water conservancy factor C can be maintained in a long time in the range of 145~150, the flow friction loss coefficient f is 0.000915, the ratio of concrete pipe (f=0.00232) and steel pipe (f=0.00179) can capacity of more than 20%. Therefore, in the transport capacity of the same time, can choose the inner diameter of the glass fiber reinforced plastic pipe, so as to reduce the one-time investment projects. Water conveyance capacity of the specific comparison table 1 and figure 1.

2.4Health performance

    Raw material through a certain production process of unsaturated polyester resin and glass fiber, the inner surface of the pipe is very smooth and Barcol hardness more than 40, unsaturated polyester resin itself through the certification of the state departments of health and epidemic prevention, glass steel pipeline product through the state departments of health and epidemic prevention inspection, so can meet the sanitary standard for drinking water, and in instances of domestic have more than 10 years.

2.5Seismic performance

    Because the pipeline is between rigid and flexible pipe, so its seismic performance is better, the strong external force will not appear deformation, damage, this is because the deformation of the glass steel pipe at 25%, no delamination, no crack.

2.6Wear resistance

    The wear resistance of the resin can be improved greatly, and the service life of the product can be improved.

2.7Low temperature resistance

    GRP pipe can reinforced plastic pipe can be applied to all kinds of environment, such as: beach, sea, river, mountains, swamps, deserts and plains, etc, with the characteristics of quick installation, convenient transportation, long service life, etc.