1. Good chemical stability: HDPE double-wall corrugated pipe is made of polyethylene, the molecular structure is CH2, and there is no polar group, so it has no polarity and good chemical stability. Except for a few strong oxidants, most chemical media have no effect on double-wall corrugated pipe.

2. Appearance and structural stability: HDPE double-wall corrugated pipe manufacturers have adopted a special "ring groove" section shape in the structural design. This pipe has a new design and reasonable structure, breaking through the traditional "plate" structure of ordinary pipes, so that HDPE double-wall corrugated pipe not only has sufficient compressive and impact strength, but also has good flexibility.

What is the leakage of HDPE double wall corrugated pipe joints?

Answer: The leakage of HDPE double-wall corrugated pipe joints is usually caused by a broken rubber ring. The rubber ring needs to be replaced. Or the joint is broken. Wrap a polyethylene plastic sheet around the joint. In addition, both heating and winding must be carried out at the same time during the winding process. The double-wall corrugated pipe connection and connection method is characterized in that the connection between the left end straight pipe section and the right end straight pipe section is an independently adjusted injection pipe fitting. The bottom and left straight pipe sections of the injection pipe fittings are hot-melt welded on the end face, and the flare and right straight pipe sections of the injection flare pipe fittings are connected with the socket of the right straight pipe section in the flare. The connection between HDPE double-wall corrugated pipes is convenient, fast and cheap, and the water-closing performance of its products meets the requirements of the water-closing inspection standard.

So how is the HDPE double wall corrugated pipe connected?

The socket pipe will be installed in the direction of the flow of water, and the double-wall corrugated pipe will be installed in the direction of the flow of water from downstream to upstream. The pipe should be laid in a straight line, and the allowable axis angle of the two adjacent pipes should not exceed 2 degrees. To prevent the position of the axis of the pipe arranged when the interface is closed, pipe stabilization measures should be taken. The woven bag can be filled with sand after sealing and pressed on the top of the arranged pipe. The quantity depends on the diameter of the pipe. After the pipe is connected, the depth and axis of the bottom of the pipe will be checked again to make it meet the requirements. If displacement, hanging and pulling occur, the work must be carried out again. The rubber mounting position of the double-wall corrugated pipe will be in the groove between the second and third corrugations of the socket. The price of the double-wall corrugated pipe and the number of seals installed depend on the design requirements. When using two seals, it is recommended to separate a wave between the seals