Used DWC Pipe Extruder Machine
Description INTAI Machinery Technology (Zhoushan) Co., Ltd. is one of the most reliable manufacturers and suppliers of used dwc pipe extruder machine in China. Please feel free to wholesale cheap equipment in stock here and get quotation from our factory. Quality products and reasonable price are available. I. Core Advantages and Technical Parameters 1. Lightweight and Construction Convenience According to the "Technical Code for Plastic Underground Drainage Pipes" (CJJ 68-2021), the density of double-wall corrugated pipes is reduced by more than 70% compared to traditional concrete pipes, and the weight of a single pipe is only 1/8 of that of the same specification concrete pipe. Data from the National Building Materials Network in 2022 shows that its on-site installation efficiency has increased by 40%, and the interface leakage rate is lower than 0.5% (the industry standard value is ≤ 1.2%). 2. Enhancement of mechanical properties The 2023 housing and urban-rural development ministry inspection report shows that the ring stiffness grades of HDPE double-wall corrugated pipes range from SN2 to SN16. Among them, the compressive strength of SN8 grade pipes reaches 8kN/m², which is 15% higher than the 2019 standard. Within the temperature range of -20℃ to 60℃, the linear expansion coefficient remains stable at 150×10⁻⁶/℃. 3. Corrosion Resistance and Service Life The 2022 white paper of the China Plastics Processing Industry Association states that HDPE pipes have a service life of over 50 years in acidic and alkaline environments (pH 3 - 12), which is 15% longer than that of PVC pipes. They are particularly suitable for drainage systems containing corrosive media such as hydrogen sulfide. II. Main Application Scenarios 1. Municipal Engineering Sponge City Construction Project: According to the statistics of the Ministry of Housing and Urban-Rural Development in 2023, 35% of the rainwater collection systems of sponge cities in China use double-walled corrugated pipes, and the maximum laying length of a single project can reach 12 kilometers (such as the Xiongan New Area Initiation Zone Project). Underground Integrated Pipeline: In conjunction with the intelligent monitoring system, 90% of the drainage branch pipes in the pipeline are made of SN8 grade corrugated pipes, meeting the 200 kPa soil pressure requirement. 2. Agriculture and Environmental Protection Fields Irrigation system: In the 2022 demonstration project of the Ministry of Agriculture and Rural Affairs, the main drip irrigation pipeline uses smooth inner walls of corrugated pipes, resulting in a 22% increase in water transmission efficiency. Sludge treatment: In the anaerobic digestion system, corrugated pipes with a temperature resistance of 60℃ account for 73% of the materials in the new projects (data source: China Environmental Protection Industry Association). 3. Special environmental applications Permafrost areas: The drainage project for the Qinghai-Tibet Railway adopts embedded corrugated pipes, and there is no record of freezing cracks even at -41℃ extreme temperatures (Report of China Railway Science Research Institute in 2021). Island projects: The anti-corrosion corrugated pipes passed the salt spray corrosion test in the Hainan Free Trade Port project, meeting the ISO 9227:2017 standard for 1000-hour assessment. III. Scope of Application and Limitations 1. Recommended application scenarios Soil bearing capacity ≥ 80 kPa non-rock foundation Shallow drainage system with a burial depth of ≤ 3m Municipal pipelines requiring frequent maintenance (with quick disassembly and assembly features) 2. Limiting usage conditions Deep-buried projects with soil pressure greater than 15m water head (it is recommended to use steel belt reinforced pipes) Fire water supply systems that require pressure-bearing (ring stiffness should be ≥ SN12.5) High-temperature industrial wastewater (special modification treatment is required when the temperature is > 60℃) Hot Tags: used dwc pipe extruder machine, China used dwc pipe extruder machine manufacturers, suppliers, pre owned pe pipe extruder, pre owned pipe extrusion accessories, second hand pipe extruder for intermittent extrusion, second hand pipe extruder for various pipe sizes, second hand pipe extruder parts, used pipe extrusion tools
