September 01, 2021

Classifications And Properties of FRP Sand Pipes in Industry

Glass fiber pipe is a kind of non-metallic pipe with light weight, high strength and corrosion resistance. It is a glass fiber containing resin-based weight wound layer by layer on a rotating core mold according to the process requirements, and quartz sand is laid evenly between the fibers over a long distance as a sand layer. The tube wall structure is reasonable and advanced, and can give full play to the material. On the premise of meeting the strength of use, the stiffness is improved to ensure the stability and reliability of the product. FRP sand pipe is accepted by the majority of users for its excellent chemical resistance, light weight and high strength, no scaling, strong seismic resistance, long service life compared with ordinary steel pipe, low comprehensive cost, quick installation, safety and reliability.

Classification of commonly used FRP pipes.

1, FRP sand pipe.

2, FRP desulfurization pipe.

3, FRP top pipe.

4, FRP pressure pipe.

5, FRP cable protection pipe.

6, FRP insulation pipe.

7, FRP ventilation pipe.

8, FRP water transmission pipe.

Classifications And Properties of FRP Sand Pipes in Industry


Light weight

The specific gravity of FRP sand pipe is small, 1/4 of steel pipe and 1/10 of cement pipe. it can be loaded and unloaded every year. The installation cost is very low. The length of sand pipe can reach 12 meters. There are few installation joints, and other pipes are complicated to open. Welding, anti-corrosion treatment and shadow protection do not need special equipment to ensure the quality of the project.

Heat and frost resistant

FRP sand pipe can work normally under the temperature from -40℃ to 80℃, and the pipe with special resin ratio can work under the high temperature of 110℃, and the pipe will not be cracked under the freezing medium. Also the FRP storage tanks are widely used.

High mechanical strength

FRP sand pipe has excellent water pressure resistance, external pressure resistance and impact resistance. It can meet the burial conditions under different geological conditions, and can design and manufacture pipes and fittings according to the pressure required by customers.

Corrosion resistance

FRP sand pipe is resistant to acid, alkali and soil corrosion, and can convey groundwater, seawater, factory sewage, highly corrosive liquid, etc. According to the different transport medium, choose the corresponding corrosion-resistant materials to manufacture special pipes. Sandwich pipe can keep all the characteristics of the original FRP products (light weight, high strength, corrosion resistance, insulation, heat insulation, design).


FRP sandwich pipe has good wear resistance. The test shows that the water slurry containing a large amount of sand and gravel is put into the pipe of different materials, and the sand and gravel in the water slurry will disappear after the pipe rotates for 10,000 turns.

Small negative fluid force

FRP sand pipe smooth inner wall, small resistance, roughness coefficient of 0.0084, negative force coefficient is about 1/2 of steel pipe, 1/4 of cement pipe, fluid pressure head loss is small, can ensure that the smaller diameter to transport a larger . Flow rate. Under normal conditions, sand pipes are one grade lower than cast iron and cement pipes. If the same inner diameter pipe is used, the power and energy of the pump can be saved by 1/3.

Maintain water quality

FRP sand pipe is a non-toxic product, and the drinking water conveyed every year can keep the water quality sanitary for a long time.

WEITONG FRP brought in the advanced technology and equipments from Vetroresina Corporation(Italy) successfully. It has become a professional enterprise which is manufacturing FRP vessels and pipes. To wholesale FRP products, please contact us now.