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Hebei Jurun FRP Products Co., Ltd.
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河北衡水枣强玻璃钢工业园 Address: Zaoqiang FRP Industrial Park, Hengshui , Hebei

13931811637 Mobile: 13931811637

李经理 Contact: Manager Li

306958637@qq.com Email: 306958637@qq.com

How to repair glass fiber reinforced plastic pipes




With the development of the current society and the continuous improvement of people's living standards, we all know that science and technology have been used in our daily life now. For example, glass fiber reinforced plastic pipes have excellent chemical resistance, light weight, high strength, and no scaling. Strong shock resistance, long service life compared with ordinary steel pipes, low comprehensive cost, fast and reliable installation, etc., have been accepted by customers.

How to repair glass fiber reinforced plastic pipes


Digging pipeline


Close the control valves on both sides of the leak point, and excavate the glass fiber reinforced plastic pipe with large burial depth and clear underground pipelines at the same time. Mechanical excavation is generally used.


FRP pipelines with small burial depths and complicated underground pipelines are generally excavated manually. Because the water return to the pipe network and the control valve may not be closed tightly, pumping machinery is usually required to cooperate with the excavation.


FRP pipe cleaning and polishing


Before maintenance, clean the pipe body within 0.5 meters on both sides of the damaged part of the glass fiber reinforced plastic pipe, remove all dirt on the pipe body, and polish the uneven part of the pipe body. The grinding should be moderate, and the pipe body can be basically smooth. Do not polish too much, affecting the structural strength of the tube.


Select the single-diameter connector of the appropriate caliber and process the steel flange short tube


After the excavation is completed, according to the diameter of the FRP pipe, two single-disc connectors of the same specification are selected for use; then according to the damage of the pipeline, a pipe of the same diameter with a diameter of 0.4 meters longer than the damaged portion of the FRP pipe (if the damaged part At the socket, the length of the steel pipe can be lengthened according to the actual situation), and two standard flanges are welded to the two ends of the steel pipe. Cutting FRP pipes


According to the length of the steel flange short pipe, the FRP pipe that cuts the broken part generally requires that the length of the FRP pipe that is cut is 2 cm longer than that of the steel flange short pipe, in order to facilitate construction and installation during maintenance. When cutting, the cut should be straight. After cutting, the cut of the glass fiber reinforced plastic pipe should be coated with epoxy resin to prevent water from immersing in the sand-containing structure layer of the pipeline and causing damage to the glass fiber reinforced plastic pipe.


Installing a single-disk connector


Put two single-disc connectors with the same specifications on the two sides of the cut glass fiber reinforced plastic pipe, and then place the welded steel flange short tube on the position where the glass steel pipe has been cut off and support it. The pipe fittings should be on the same axis as the glass fiber reinforced plastic pipe, and ensure that the gap between the flange and the cut of the glass fiber reinforced plastic pipe on each side is not greater than 1 cm.


Bolt the single disc connector to the steel flange short pipe, tighten the bolts evenly on both sides at the same time, check whether the joints are uniform and sealed well, and then restore the water supply.


Warm reminder: I believe that we all have a certain understanding through the content of the article, and the main thing is to pay close attention to whether there is water seepage at each connection port of the maintenance department after the water is flowing. When the water pressure returns to normal pressure After that, the steel flange short pipe is coated with asphalt paint three times for anticorrosion, and the bottom is supported by a concrete support pier to be backfilled.




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General Manager: Manager Li Mobile: 13933811637 Address: Zaoqiang FRP Industrial Park, Hengshui, Hebei Landline: 0318-8988777 Fax: 0318-8988778 Email: 306958637@qq.com
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