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BEIHAI YUEDA FRP PRODUCTS
Acceptance of fiberglass reinforced plastic (FRP) pipes
Release time:
2020/01/10
Fiberglass reinforced sand pipes are widely accepted by users due to their excellent chemical corrosion resistance, lightweight and high strength, non-scaling properties, strong seismic resistance, longer service life compared to ordinary steel pipes, lower overall cost, quick installation, and safety reliability. Fiberglass pipes are used in industries such as petroleum, chemical engineering, and drainage. The production of fiberglass pipes in our country is developing rapidly, with increasing quantities year by year, and the application range and sectors are also expanding. When we receive fiberglass pipes, we cannot always guarantee that they are qualified. Therefore, we should inspect the received fiberglass pipes to avoid damage during use.
Fiberglass reinforced 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 cost, quick installation, and safety reliability. Fiberglass pipes are used in industries such as petroleum, chemical engineering, and drainage. The production of fiberglass pipes in our country is developing rapidly, with increasing quantities year by year, and the application range and departments are also expanding.
When we receive fiberglass pipes, we cannot always guarantee that they are qualified. Therefore, we should inspect the received fiberglass pipes to avoid damage during use. So, how should we check the fiberglass pipes? Below are several acceptance methods for fiberglass pipes:
(1) Check the radial deviation value. According to the specifications, the initial radial deviation of the pipe should be tested within 24 hours after the installation of the fiberglass pipe, and the pipe should not have swelling, flattening, or other sudden changes.
(2) Water pressure test. To comprehensively check the installation quality of the pipe, the test methods specified in the "Construction and Acceptance Specifications for Water Supply Projects" for drainage pipe projects can be conducted according to the steel pipe standards for allowable leakage.
(3) Since the fiberglass pipes use a socket type double O-ring connection, each installed pipe must be pressed at the socket to test the sealing effect of the double O-ring. The pressure test pump directly fills water through the pressure test hole at the top of the pipe, increasing the pressure to 1.5 times the working pressure of the pipe. When the pump stops (with the drainage valve open for venting during operation), observe for 2 minutes. If the pressure drop is less than 5% of the test pressure and there is no leakage at the nozzle, the nozzle pressure test is qualified. If the pressure drops rapidly, it indicates poor sealing, and reinstallation is needed to ensure the overall success of the pressure test.
To prevent construction defects in fiberglass pipes from causing pipe penetration, we can also take the following two measures to avoid defects: 1. Try to avoid outdoor laying to prevent direct UV exposure to fiberglass pipes. 2. Use centrifugally cast sand pipes to ensure that the pipe wall is compact under centrifugal action, preventing cracks and delamination, which will greatly improve product quality.
Guangxi Fiberglass Products Co., Ltd. is a professional manufacturer and developer of fiberglass pipes. We welcome your inquiries.
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