Municipal pipe network transformation, the selection of PE steel mesh skeleton pipe

Pipeline Performance Core Requirements for Municipal Pipeline Network Reconstruction

The current municipal pipe network transformation covers multiple scenarios such as water supply, rain and sewage diversion, and heat transmission, which puts forward higher requirements for pipeline pressure bearing capacity, corrosion resistance, settlement resistance, and construction efficiency. Traditional cement pipes have high self-weight, easy leakage, and long construction period. Ordinary PE pipes have limited pressure-bearing capacity, making it difficult to adapt to the pipe network needs with high buried depth and large flow of main roads. The market urgently needs pipeline products with more balanced comprehensive performance.

Suitability Performance Advantages of PE Steel Mesh Skeleton Pipe

PE steel wire mesh skeleton pipe with high-strength steel wire braided mesh as the reinforcement layer, the inner and outer layers are covered with high-density polyethylene, compared with ordinary PE pipe pressure capacity enhancement of more than 40%, can adapt to the pressure demand of the pipe network within 1.6MPa; excellent settlement resistance, can be adapted to soft soil foundation, road intersection and other easily deformed areas; stable chemical properties, acid and alkali corrosion resistance, not easy to scale, fluid transportation efficiency is 20% higher than traditional pipes, normal buried service life of up to 50 years, greatly reducing the later operation and maintenance costs.

Key points for the selection of PE steel mesh skeleton pipes in municipal scenes

When selecting the type, it is first necessary to match the design pressure level of the pipe network, select the corresponding wall thickness products according to the buried depth and soil thickness, and give priority to the compliance products that meet the national general standards; for the rain and sewage pipe network, the ring stiffness grade of the pipeline should be additionally confirmed to avoid pressure deformation in the later stage; the water supply scene should confirm that the product meets the safety standards for drinking water transportation to avoid secondary pollution.

Precautions for construction of PE steel mesh skeleton pipe

Before construction, it is necessary to clean the sharp stones and hard objects in the trench to avoid scratching the outer wall of the pipeline; the connection is preferentially connected by electrofusion or hot melt to ensure the sealing of the interface. Construction personnel need to familiarize themselves with the connection operation specifications in advance to avoid virtual welding. After installation, close water and pressure test should be done according to the specifications. After confirming that there is no leakage, backfill and tamping should be done in layers to avoid displacement and deformation of the pipeline.

As a new type of plastic composite pipe with outstanding comprehensive performance, PE steel wire mesh skeleton pipe has been applied in many municipal pipe network renovation projects, which can effectively reduce the leakage rate of pipe network and meet the construction requirements of low-carbon municipalities.