Frost resistance of fiberglass steel pipes

Frost resistance of fiberglass steel pipes
Steel pipe is a traditional type of pipe material, which is made by spirally winding steel plates into a cylindrical shape and then welding them. From the perspective of strength and stiffness, both sanded fiberglass steel pipes and steel pipes have excellent characteristics. However, from the perspectives of corrosion resistance and service life, hydraulic characteristics, energy consumption, water quality, transportation, installation, and price, sanded fiberglass steel pipes are superior and more competitive than steel pipes.
Frost resistance
Fiberglass steel pipes are flexible pipes with high fracture elongation, good elasticity, and low thermal conductivity, making them non-metallic insulation materials. In addition, due to the high circumferential and axial tensile strength of fiberglass sand filled pipes, even when the pipes are completely frozen with water, there will be no frost cracking phenomenon. In general, 1/3-1/2 of the fiberglass pipes buried in cold regions may not affect their use in the frozen layer during operation.
Resistance to deformation and uneven settlement of foundation
Fiberglass reinforced plastic pipes not only have sufficient stiffness performance to resist external loads and deformations, but also have a certain degree of flexibility. The borrowing angle of DN1800mm pipe interface can reach 1.5 °; Steel pipes, on the other hand, are rigid connections and are prone to shear failure or weld cracking under external forces or uneven settlement. Therefore, fiberglass steel pipes have stronger resistance to deformation and uneven settlement compared to steel pipes, and have strong resistance to external forces such as earthquakes.
Maintenance and Repair
From the characteristics of fiberglass pipe and the operation of projects such as loosening and extending, fiberglass pipe is a maintenance free pipe. If the fiberglass pipe is damaged due to external factors, fiberglass enterprises can use formed special repair clamps to solve the problem in a short period of time without affecting the water supply.
Once the steel pipe is damaged or burst, maintenance is quite difficult.