Product Introduction:
Glass fiber reinforced plastic (GFRP) drainage pipes are a new type of composite material made from unsaturated resin as the matrix material, glass fiber as the reinforcing material, and quartz sand as the filling material. They are favored in the chemical industry, drainage projects, and pipeline engineering due to their excellent corrosion resistance, hydraulic properties, lightweight yet high strength, large flow capacity, easy installation, short construction period, and low overall investment.
Product Advantages:
The product is made with corrosion-resistant resins, featuring excellent mechanical properties and processing characteristics, capable of withstanding the erosion from most acidic, alkaline, saline untreated wastewater, corrosive soil or groundwater, and a multitude of chemicals. It maintains good flexibility and strength at -30°C and can be used over a long period between -50°C to 80°C. Resins with special formulations can even be used at 200°C. The glass steel pipe has exceptional wear resistance. Tests have proven this: by comparing the rotational wear impact of water containing a large amount of sludge and sand when placed inside the pipe. After 300,000 rotations, the wear depth on the inner wall of the pipe was measured as follows: 0.53mm for tar and porcelain oil-coated steel pipes; 0.48mm for steel pipes with surface hardening treatment; and only 0.21mm for glass steel pipes. This demonstrates the superior wear resistance of glass steel pipes.
Section 3:
Due to the low thermal conductivity of glass fiber reinforced plastic products, they exhibit excellent insulation properties. They do not scale, rust, or become infested by marine or sewage-borne organisms such as mollusks and fungi. The standard length of pipes is typically 3-6-9-12m per piece (special lengths can also be produced upon customer request). Longer pipes have fewer joints, which speeds up installation, reduces malfunctions, and improves the overall quality of the pipeline. The glass fiber reinforced plastic pipes produced by filament winding have a density of 1.65-2, which is only 1/4 that of steel. However, their hoop tensile strength is 180-300MPa, and their axial tensile strength is 60-150MPa, comparable to alloy steel. Consequently, their specific strength (strength/density) is 2-3 times that of alloy steel, allowing them to be designed to meet various internal and external pressure requirements as per user specifications. For the same diameter, FRP pipes weigh only 1/2.5 of carbon steel pipes (steel plate coiled), 1/3.5 of cast iron pipes, and about 1/8 of prestressed concrete steel pipe, making transportation and installation very convenient. The tensile strength of the pipes is lower than that of steel but higher than that of ductile iron pipes and concrete pipes. Their specific strength is approximately 3 times that of steel pipes, 10 times that of ductile iron pipes, and 25 times that of concrete pipes. Additionally, their thermal conductivity is only 1% of that of steel pipes, offering excellent insulation properties, suitable for use in areas with dense power and telecommunication lines and high lightning activity.
