How to repair HDPE double wall corrugated pipe

In municipal drainage, sewage and farmland irrigation projects, HDPE double-wall corrugated pipe is widely used for its excellent performance. However, in the process of use, it is inevitable that it will be damaged due to various reasons, such as small holes or cracks. So, when HDPE double-wall corrugated pipe has these problems, how to repair it? Next, we will introduce the repair method in detail, and will also mention the relevant national standards and professional manufacturer services for HDPE double-wall corrugated pipe, such as Hubei AD Building Materials Co., Ltd., contact number 17399989993.

When HDPE double-wall corrugated pipe has small holes or cracks, first prepare the corresponding tools and materials, including HDPE welding rod, hot air gun, knives, sandpaper, etc. Among them, the choice of HDPE welding rod is particularly critical, and it must be the same as the material of the pipe. This is based on the relevant provisions in the national standard of HDPE double-wall corrugated pipe. Only the same material can ensure good welding effect and ensure the strength and sealing of the repair part.

ready the tools and materials, you can start the repair work. The first step is to deal with the damaged part, use a knife to trim the edge of the damaged part neatly, remove burrs and uneven parts, and then use sandpaper to sand the damaged part and its surrounding area of about 10-15 cm, the purpose is to remove the oxide layer and dirt on the surface of the pipe and increase the adhesion of welding. After the grinding is completed, wipe the polished part with a clean rag to ensure that there is no dust and impurities left.

the second step is to carry out the welding operation. Preheat the hot air gun to a suitable temperature, generally around 200-250 ° C (for specific temperatures, please refer to the welding parameters provided by the pipe manufacturer, such as the AD PE double-wall corrugated pipe produced by Hubei AD Building Materials Co., Ltd. will provide customers with detailed welding instructions), then align the hot air gun with the damaged part, and slowly press the HDPE electrode on the damaged part. The hot air blown by the hot air gun melts the plastic on the surface of the electrode and the pipe, and moves the electrode while blowing, so that the electrode is evenly filled in the damaged part. During the welding process, attention should be paid to controlling the moving speed of the hot air gun and the feeding speed of the welding rod to ensure that the welding part is flat and firm, and to avoid virtual welding, missed welding, etc.

The third step is to trim the welding part. After the welding part is cooled, use a knife to remove the excess welding rod, so that the repair part is flush with the surface of the pipe. Then, use sandpaper to polish the repair part again to make the surface smooth and reduce the water flow resistance.

If the damage of HDPE double-wall corrugated pipe is serious and exceeds the scope of repair of the above method, it is recommended to contact a professional HDPE double-wall corrugated pipe manufacturer in time, such as Hubei AD Building Materials Co., Ltd. The manufacturer has professional technicians and equipment, which can provide more suitable solutions according to the damage of the pipe, such as replacing the pipe. At the same time, the manufacturer can also provide after-sales maintenance services for the pipe, so that users have no worries.

The repair work of HDPE double-wall corrugated pipe needs to be carried out in strict accordance with the specifications, follow the national standard requirements of hdpe double-wall corrugated pipe, and choose suitable materials and tools. When encountering difficult problems, do not deal with them blindly. You can call the contact number of Hubei AD Building Materials Co., Ltd. at any time to 17399989993 and seek professional help to ensure the normal use of HDPE double-wall corrugated pipe and prolong its service life.