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BEIHAI YUEDA FRP PRODUCTS
Detailed Explanation of Glass Fiber Reinforced Plastic (FRP) Sand-Embedded Pipes
Release time:
2022/03/22
The inner surface of the fiberglass reinforced sand pipe is very smooth, with low friction resistance (n0.0084), which can greatly reduce pressure loss in the channel and increase flow. For the same flow rate, a smaller pipe diameter or a pump with lower power can be selected, thereby reducing initial investment in the project and decreasing energy consumption (lowering operating costs).
Glass fiber reinforced sand pipeThe inner surface is very smooth, with low friction resistance (n0.0084), which can greatly reduce channel pressure loss and increase flow. For the same flow rate, smaller pipe diameters or lower power pumps can be selected, thus reducing initial project investment and energy consumption (lowering operating costs).
Glass fiber reinforced sand pipeThe pipe wall has a multi-layer sandwich core structure. When the annular deformation of the pipe causes the pipe wall to bend, delamination may occur. The higher the sand content, the greater the tendency for delamination. The delamination phenomenon indicates that the structural strength of the pipe is compromised and it can no longer be used as a pressure glass fiber reinforced pipe.
During the production process, the quartz sand in the glass fiber sandwich falls freely and wraps between the fiber layers. This process results in uneven amounts of false silk, leading to a loose pipe wall that is prone to layering.
For installed glass fiber reinforced pipes, since the trench foundation and cushion cannot guarantee uniformity everywhere, bending is inevitable. For socket-connected pipes, ensure a compression of 40% to 50% when installing double 'O' rubber rings. Therefore, under bending deformation, slight sliding displacement between sockets is allowed to accommodate bending, reduce pipe stress, while ensuring sealing, safety, and reliability.
Glass fiber reinforced sand pipeInstallation and Precautions
Before actual excavation, the trench should detect underground pipelines and cable infrastructure. Measure the centerline position and ground elevation data before trench excavation. This can fully improve the precise position of the pipe centerline. The trench should be excavated using an excavator during the actual digging process, combined with manual work. According to design requirements, a protective layer needs to be preset during excavation, coordinating with manual excavation measures to dig the trench and form the groove. During trenching, analyze the terrain and the construction status of infrastructure such as pipelines in the construction area to obtain basic hydrological and geological data, so that relevant departments can formulate practical drainage plans. The water discharged from the drainage system should not harm the surrounding road environment. If the pipe itself has poor buoyancy resistance, drainage should be prohibited, and the excavation depth should be controlled during the actual trenching process. Analyzing the position of the slope plate can ensure the accuracy of the slope and structural position. In addition, the trench width should be controlled.Glass fiber reinforced sand pipeTo meet the basic requirements for pipe layout, install supports in areas with complex terrain and develop various emergency plans.
After checking the safety of the trench foundation and determining the pipe position, installation activities should be carried out using lifting equipment and manual operation. During installation, ensure that the bearing direction and pipe installation direction are consistent. Relevant departments should record the pipe diameter and select suitable rubber rings to ensure that all parts of the pipe can be compressed. Before installing the pipe, cleaning measures should be taken at the pipe ends and inside the slots. Pressure testing holes can be pre-set on the bearing pipe wall. When connecting glass fiber reinforced head pipes, strictly control the performance test bolt installation operation, and ensure that the pipe bearing and socket positions remain stable and effectively coordinate with the groove and pipe wall.
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