Fiberglass piping boasts excellent physical properties; the density of fiberglass pipe materials ranges from 1.8 to 2.1, approximately one-fourth that of steel. It has a higher specific strength than steel, cast iron, and plastic, and typically weighs no more than one-third of the same-sized steel pipe. It exhibits superior mechanical properties. Additionally, the expansion coefficient of fiberglass pipes is roughly equivalent to that of steel, while its thermal conductivity is only 0.5% of steel's, making it an excellent insulator for both heat and electricity.
2. Glass steel pipes are resistant to chemical corrosion and have a long service life, making them suitable for transporting various media such as acids, alkalis, salts, and organic solvents.
3. Fiberglass pipe exhibits excellent hydraulic properties, which are one of the key characteristics of glass steel pipes. Superior hydraulic properties imply minimal fluid head loss, allowing for the use of smaller pipe diameters or lower-powered transport pumps, thereby reducing initial investment in pipeline projects, conserving electricity, and lowering operational costs. The inner surface of fiberglass is quite smooth, with a typical surface roughness of 0.008, making it almost equivalent to a "hydraulic smooth pipe." During operation, the inner surfaces of steel pipes, cast iron pipes, and cement pipes often suffer from localized corrosion, becoming increasingly rough, whereas fiberglass consistently maintains the smooth surface of new pipes.
4. Pipe installation and maintenance costs for glass steel pipes are low. Generally, no special anti-corrosion treatment is required for glass steel pipes; the insulation layer can be made thinner, or even no additional insulation treatment is needed. The pipes are lighter, requiring less lifting equipment tonnage and less power consumption. The length of glass steel pipes is longer than that of cement pipes and cast iron pipes, which reduces the number of joints, thereby lowering installation and maintenance costs. This has been proven by numerous engineering practices both domestically and internationally.
5. Glass fiber reinforced plastic (GRP) piping offers great design flexibility and a short modification cycle. GRP is formed by winding fiber-reinforced materials, which are浸有树脂的基体，layer by layer around a mandrel under specific process conditions and then appropriately cured. The pipe wall is a layered structure, and its various physical and chemical properties of GRP pipes can be adjusted by changing the resin system or using different reinforcing materials, allowing for the production of pipes with different pressure ratings or specific performance characteristics to accommodate various media and working conditions. The short modification cycle is a significant feature of fiber-wound composite materials, which cannot be matched by anisotropic metallic pipe materials.
