PE water supply pipe is a special water supply pipe formed by extrusion process with high density polyethylene as the core raw material. It is one of the commonly used high-quality pipes with high penetration rate in various water conservancy projects in Hubei. This type of pipe strictly implements the relevant national production standards, and the pipe diameter covers the full specification range of 20mm to 1200mm. The pressure grade is divided into 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, and 1.6MPa gears. The suitable model can be flexibly selected according to the water flow and pressure bearing requirements of different water conservancy projects.
The core practical advantages of this type of pipe are mainly four points: First, corrosion resistance and damage resistance to adapt to complex working conditions. Hubei region has diverse landforms, hills, plains, rivers and lakes are staggered, and the soil pH in some construction areas is uneven and the groundwater level fluctuates greatly. The PE water supply pipe is chemically stable and will not react with common acid and alkali components in soil and water bodies. The impact resistance meets the requirements of the national standard. It is not easy to crack and deform during transportation and laying. There is no need for additional anti-corrosion treatment, which can effectively reduce the additional cost in the construction stage. Second, the safety of sanitary and environmentally friendly water supply is high. The raw materials of the pipe meet the relevant national standards for food contact materials, the inner wall is smooth and the friction coefficient is low, it is not easy to scale after long-term use, it will not breed microorganisms such as algae, and no harmful substances will be precipitated during the water supply process. It can meet the compliance requirements of drinking water transportation for urban and rural residents and adapt to the quality requirements of people's livelihood water supply projects in Hubei water conservancy projects. Third, the connection is reliable and the construction efficiency is high. The pipe adopts two mainstream connection methods: hot melt and electrofusion. The strength of the joint after melting is higher than that of the pipe body, and there will be no problems of water seepage and water leakage. The weight of the pipe under the same specification is only about one-eighth of that of the steel pipe. It can be completed without large lifting equipment. For water conservancy projects that rush to work before the flood season in Hubei, the construction cycle can be effectively compressed and the project can be guaranteed to be put into Under normal use, rated pressure and normal temperature conditions, the service life of PE water supply pipes can reach more than 50 years. During daily use, there is no need to carry out frequent maintenance work such as anti-corrosion and rust removal. For long-term water conservancy projects such as long-distance water transmission across Hubei and irrigation area transformation, the operation and maintenance investment of the whole life cycle can be significantly reduced.
The application scenarios of this type of pipe cover various water conservancy projects such as urban and rural drinking water transportation projects, water-saving renovation projects in irrigation areas, river and lake ecological water replenishment projects, and rural drinking water safety consolidation and improvement projects in Hubei; the main body of adaptation includes water conservancy engineering design units, construction contractors, project operation and maintenance management units and other relevant parties, and the corresponding specifications can be selected according to the specific water transportation needs and construction conditions of the project.
This kind of pipe production process implements GB/T 13663 series national standards, and needs to pass a number of tests such as pressure performance and sanitary performance of third-party authoritative organizations before listing, which meets the relevant building materials access requirements of the Ministry of Water Resources, and can be safely applied to various compliance water conservancy projects.
