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BEIHAI YUEDA FRP PRODUCTS
The structural characteristics of fiberglass reinforced plastic (FRP) pipes.
Release time:
2022/08/15
Fiberglass pipes are a type of lightweight, high-strength, and corrosion-resistant non-metallic piping material. They are made by winding layers of resin-based fiberglass around a rotating core according to process requirements, with quartz sand evenly distributed between the fibers as a sand layer. The wall structure of the pipes is reasonable and advanced, allowing for the full utilization of the material's properties. While meeting the required strength for use, it enhances rigidity and ensures the stability and reliability of the product.
Fiberglass pipeIt is a lightweight, high-strength, corrosion-resistant non-metallic pipe material. It is made by winding resin-based glass fibers layer by layer according to process requirements on a rotating core, with quartz sand evenly spread between the fibers as a sand layer. Its pipe wall structure is reasonable and advanced, fully utilizing the material's properties. While meeting the required strength, it enhances rigidity, ensuring the stability and reliability of the product. Fiberglass sand pipes are widely accepted by users due to their excellent chemical corrosion resistance, lightweight high strength, non-scaling, strong seismic resistance, longer service life compared to ordinary steel pipes, lower overall costs, quick installation, and safety and reliability.
Structural characteristics of fiberglass pipes
Excellent corrosion resistance
Fiberglass pipeDo not use cathodic protection or other anti-corrosion measures, which will not cause secondary pollution to water and other media. This product has a long service life.
The weight of the pipe is only 1/4 of that of the same specification and length ductile iron pipe, and 1/10 of that of cement pipes. It is easy to transport and unload, and easy to install.
Reduce pipe joints, speed up installation, and improve the quality of the entire pipeline.
Fiberglass pipeReduce flow resistance, increase flow, and lower energy consumption. Compared to steel pipes of the same specification, using smaller diameter pipes can increase flow by about 10% for the same flow rate; no scaling, and long-term use will not reduce flow. It has a good effect on protecting cables in disturbed and highly corrosive environments.
Fiberglass pipeProperties
(1) Corrosion resistance: It is a chemically inert material with excellent corrosion resistance, and different corrosion-resistant pipes can be selected according to the conveyed medium.
(2) High mechanical strength: Good resistance to water pressure, external pressure, and impact, and pipes and fittings can be designed and manufactured according to the required pressure.
(3) Strong temperature adaptability: Working temperature range: greater than -70 degrees Celsius and less than 250 degrees Celsius, the pipe will not crack under frozen media.
(4) Low fluid resistance: The inner wall of the pipe is smooth, with a roughness coefficient of 0.0084. Under the same flow rate, the pipe diameter can be reduced.
(5) Lightweight and long service life: Lightweight, easy to transport, low construction cost, maintenance-free, with a service life of over 50 years.
(6) Maintain water quality: Non-toxic, suitable for transporting drinking water, can maintain water quality hygiene for a long time.
Many fiberglass reinforced plastic pipes are used for underground pipelines. Of course, the span issue of some bottom-layer pipelines is relatively necessary for span calculations.
Underground pipelines are supported by pipe racks, hangers, and supports. The distance between two support points is called the pipeline span. Of course, the span should not be too large, as it will affect the normal operation of the pipeline. If the span is too small, it will make the pipeline layout denser, and the investment cost will increase accordingly, as the number of pipes increases. To ensure the safety and normal operation of the pipeline, the span of the pipeline should be expanded as much as possible.
Of course, if you want to solve this span issue, the strength and stiffness of the pipeline are determined by two conditions:
(1) Determine the pipeline span based on strength conditions
Under external load, the maximum stress generated at the pipe interface should not exceed the allowable stress of the fiberglass pipe.
(2) Determine the pipeline span based on stiffness conditions
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