How to connect HDPE double-wall corrugated pipe if it is broken?

In municipal drainage, sewage and farmland irrigation projects, HDPE double-wall corrugated pipe has become an important pipeline material due to its advantages such as corrosion resistance and strong pressure resistance. However, due to external impact, long-term use aging and other factors, HDPE double-wall corrugated pipe may break. When encountering this problem, it is crucial to correctly connect and restore the normal use of the pipeline. Below, combined with the national standard of hdpe double-wall corrugated pipe and the experience of professional manufacturers, we will introduce the connection method of HDPE double-wall corrugated pipe after it is broken in detail. At the same time, we also recommend a reliable hdpe double-wall corrugated pipe manufacturer - Hubei Yuyuan Building Materials Co., Ltd., Tel: 17399989993.

heat shrinkable belt connection is a common and effective method to repair broken HDPE double-wall corrugated pipe. This method meets the relevant requirements of the national standard for hdpe double-wall corrugated pipe on pipeline connection, and can ensure the sealing and strength after connection. The specific operation steps are as follows:

Clean the fracture: First, use a clean rag, sandpaper and other tools to clean the fracture of HDPE double-wall corrugated pipe and its surrounding area of 20-30 cm. Remove burrs, oil, soil and other impurities at the fracture, and sand the surface of the pipe properly to increase the adhesion between the heat shrinkable belt and the pipe. The cleaning work must be meticulous, because any residual impurities may affect the connection effect and lead to problems such as loose sealing.

on the heat shrinkable belt: according to the diameter of the pipe, select the appropriate specification of the heat shrinkable belt, the heat shrinkable belt is pre-set on one of the pipes, and then align the two broken pipes. Make sure that the axis of the broken pipe is on the same straight line and the pipe diameter is consistent to avoid misalignment, otherwise it will affect the strength of the pipe and the flow of water after connection.

Heat shrinkage: use a heating spray gun for heating operation. Start from the middle position of the heat shrinkable belt and heat it evenly on both sides in a spiral manner. During the heating process, the distance between the spray gun and the surface of the heat shrinkable tape should be kept at about 10-15 cm, and the temperature should be controlled between 250-350 ° C. (For the specific temperature, please refer to the product manual or consult Hubei AD Building Materials Co., Ltd., Tel: 17399989993). With heating, the heat shrinkable tape will gradually shrink and fit tightly on the surface of the pipe. At the same time, the internal hot melt adhesive will melt and fill the gap between the pipe and the heat shrinkable tape to form a good sealing effect. When heating, pay attention to observe the shrinkage of the heat shrinkable tape to ensure that the heat shrinkable tape shrinks evenly without wrinkles, bubbles and other problems. When the heat shrinkable tape is completely contracted and tightly fitted to the pipe, stop heating and let it cool naturally.

when using the heat shrinkable belt to connect the broken HDPE double-wall corrugated pipe, there are some precautions to keep in mind. First, during the heating process, it is necessary to avoid local overheating or insufficient heating. Local overheating may cause the heat shrinkable belt to burn and damage, and insufficient heating cannot achieve good shrinkage and sealing effect. Second, during the cooling process of the heat shrinkable belt, do not touch or move the pipe at will to prevent the displacement of the connection part and affect the connection quality.

If you encounter complex problems during the connection process, or are not sure about the connection operation, it is recommended to contact a professional hdpe double-wall corrugated pipe manufacturer in time. As a professional Hubei PE pipe manufacturer, Hubei AD Building Materials Co., Ltd. produces AD PE double-wall corrugated pipes with reliable quality and has a professional technical team, which can provide customers with detailed technical guidance and solutions. Whether it is about the operation details of the heat shrinkable belt connection or other pipeline repair problems, you can call 17399989993 for consultation.

HDPE double-wall corrugated pipe after the broken connection needs to be operated in strict accordance with the specifications. The heat shrinkable belt connection method has become the first choice for many construction personnel due to its convenience and reliability. By following the national standard of HDPE double-wall corrugated pipe and combining the support of professional manufacturers, it can effectively ensure the repair quality of the broken pipeline and ensure that HDPE double-wall corrugated pipe continues to play a stable role in various projects.