PE Buried Sewage Pipe

PE Buried Sewage Pipe
Implementation Standard: National Standard GB/T 45355-2025.
Material: Polyethylene (PE) Resin
Caliber range: DN75 – DN3000 and above. Spiral wound wall pipes: up to DN800. Solid wall pipes: DN20 – DN1200.
Use: Municipal engineering, road engineering, industrial field, construction engineering, environmental protection engineering, large-scale infrastructure construction, agriculture and water conservancy.
Features: Excellent Corrosion Resistance,Outstanding Impact Resistance,Superior Weather Resistance,Exceptional Hydraulic Characteristics,Lightweight and High Strength,Environmentally Friendly and Economical.
Custom orders are supported.
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Description

1.Product Introduction

PE buried sewage pipes are thermoplastic circular pipes manufactured primarily from polyethylene (PE) resin via an extrusion molding process. They are specifically designed for non-pressurized buried drainage and sewage applications. Produced in accordance with the national standard GB/T 45355-2025, this piping system is suitable for long-term use in buried drainage and sewage engineering projects where the operating temperature does not exceed 45°C.

PE piping systems offer significant advantages in terms of material properties, structural design, and jointing technologies, making them a vital choice for modern drainage and sewage projects in municipal, construction, and industrial sectors. Their non-pressurized design makes them particularly well-suited for gravity-flow drainage and sewage systems, where they effectively bear external loads based on the scientific principle of soil-pipe interaction.

Product Specifications

2.Technical Parameters

Parameter

Detailed Specification

Execution Standard

GB/T 45355-2025

Diameter Range

DN75 – DN3000

Ring Stiffness

SN4 – SN16

Operating Temperature

≤45°C (Low-temperature resistance down to -70°C)

Material Grade

PE100 grade or dedicated High-Density Polyethylene (HDPE) resin

Connection Methods

Socket & Spigot with Rubber Seal Ring, Butt Fusion, Electrofusion

Service Life

Over 50 years under suitable conditions

Chemical Resistance

Resistant to various acids, alkalis, and salts

3.Connection Methods

  • Socket and Spigot with Rubber Seal Ring:Utilizes a rubber seal ring, offering excellent sealing performance, convenient installation, and ensuring a reliable, leak-proof joint. This method provides good deformation resistance and is particularly suitable for quick installation in municipal engineering projects.
  • Butt Fusion:Involves heating the pipe ends to a molten state and then joining them under pressure, creating an integrated pipeline system with high connection strength and excellent sealing.
  • Electrofusion:Uses electrofusion fittings containing an internal heating wire to fuse the pipe and fitting into a single unit. This method is suitable for complex spaces and repair scenarios.
  • Flanged Connection:Suitable for connecting to equipment such as valves and pump stations, facilitating easy disassembly and maintenance.

4.Key Advantages & Selling Points

  • Exceptional Corrosion Resistance:Resistant to corrosion from sewage, wastewater, chemicals, and decaying substances in soil. Offers a significantly longer service life compared to traditional metal and concrete pipes.
  • Excellent Impact Resistance:The pipe wall’s specially designed structure provides high impact and pressure resistance. It resists rupture even under ground settlement and exhibits strong shape recovery after deformation.
  • Superior Weather Resistance:Outstanding cold resistance; will not crack or leak due to freezing and expansion in temperatures as low as -60°C. The typically black color withstands direct sunlight during storage and construction.
  • Excellent Hydraulic Characteristics:Smooth inner wall with a low friction coefficient ensures high flow capacity, minimizes scaling, and maintains stable long-term flow rates.
  • Lightweight yet High Strength:Lightweight for easy transportation and installation. Weighs only about 1/8 of concrete pipes, allowing installation using excavators without the need for heavy machinery.
  • Environmentally Friendly & Cost-Effective:Made from non-toxic HDPE, harmless to soil and the environment, and recyclable. Offers low costs for construction, management, and maintenance.

5.Product Applications

  • Municipal Engineering:Urban underground sewage networks, sewage treatment plants, rainwater collection systems.
  • Road Engineering:Seepage and drainage pipes for railways and highways.
  • Industrial Sector:Industrial wastewater discharge pipes, such as mine drainage.
  • Construction Engineering:Building rainwater pipes, underground drainage pipes, sewage pipes, ventilation pipes.
  • Environmental Protection Engineering:Leachate collection pipes for landfills.
  • Large-Scale Infrastructure Construction:Drainage and sewage pipes for major ports, docks, and large airports.
  • Agriculture & Water Conservancy:Drainage and irrigation for farmland, orchards, tea plantations, and forest belts; water supply pipes, irrigation pipes.

6.Testing & Certifications

  • Quality Management System Certifications:Certified under multiple systems including ISO9001 Quality Management System and ISO14001 Environmental Management System.
  • Product Certifications:Certified as a China Environmental Labeling Product (HJ/T 226-2005) and as a Hygienic & Safe Product (GB/T 17219-1998).
  • Intellectual Property:Holds numerous invention patents, utility model patents, and computer software copyrights.
  • Corporate Honors:Some manufacturers have been awarded the title of “Top Ten Chinese Plastic Pipe Brands”.
  • Corporate Standard:Formulates and implements a stringent internal standard: Q/BR027-2025 “Polyethylene (PE) Solid Wall Sewage Pipes”.

7.Manufacturing Process Flow

  1. Raw Material Preparation:Specialized polyethylene (PE) resin meeting national standard requirements is used as the primary raw material, with necessary additives included.
  1. Extrusion Molding:The extrusion molding process is employed, where the material is heated and plasticized using specialized equipment.
  1. Structure Forming:
  • Solid Wall Pipe:Formed via direct extrusion.
  • Double-Wall Corrugated Pipe:Shaped using a corrugated mold.
  • Spiral Wound Wall Pipe:Formed using the spiral winding process.
  1. Cooling and Shaping:The pipe is set into its final shape through water-cooling or air-cooling methods.
  1. Cutting and Inspection:Pipes are cut to specified lengths and undergo dimensional, visual, and performance testing.
  1. Marking and Packaging:Product information is printed on the pipes, followed by protective packaging.

8. Packaging and Delivery

  • Packaging Method:Protective packaging is used to prevent damage to the pipes during transportation and storage.
  • Transportation Assurance:The lightweight nature of the pipes facilitates easy transportation using standard trucks.
  • Delivery Process:Production scheduling is aligned with order requirements to ensure timely delivery.
  • Inventory Management:Scientific standards for the transportation and storage of pipes and fittings are implemented to ensure product quality is maintained.

9. Sales Service

  • Pre-Sales Service:Provide technical consultation, system design proposals, and product selection guidance to ensure accurate specification.
  • During-Sales Service:Offer on-site technical guidance, installation supervision, and construction quality monitoring to ensure project timelines are met.
  • After-Sales Service:Establish a rapid response mechanism to provide professional repair services and technical support, ensuring worry-free usage for our clients.

10. Company Strengths

  • Advanced Production & Technical Capabilities:Equipped with state-of-the-art production facilities and staffed by a high proportion of specialized engineering and technical personnel.
  • Robust Quality Control:Features a complete set of testing equipment and facilities, and has established a product testing laboratory at an advanced domestic level.
  • Strong Innovation Capability:Recognized as a National High-Tech Enterprise and holder of multiple patent certifications.
  • Excellent Corporate Reputation: Adheres to the service principle of “Quality First, Customer Foremost, Integrity in Operation, and Dedicated Service”.
  • Brand Influence:Has created an independent pipe brand registered as a national trademark.
Zhongcai(Sancai) Pipe has 20 years of industry experience and serves over 500 customers worldwide. Its advantages include:
  • Advanced production capacity: Automated production line with an annual output of over 100000 tons, meeting large-scale demand. R&D Strength: Collaborate with universities to continuously innovate products, such as anti-static PE pipes. Customer case: Successfully participated in the Asian municipal water supply project, with a customer satisfaction rate of 98%. Environmental Commitment: Use recyclable materials, reduce carbon footprint, and support green buildings.
  •  Strict quality control: Establish a sound quality management system, implement full process quality monitoring from raw material procurement to product delivery, and rigorously inspect every link to ensure reliable product quality.
  • Rich industry experience: With years of deep cultivation in the pipe and fittings industry, we have accumulated rich project experience and successfully served numerous large-scale municipal, construction, industrial and other projects, winning widespread recognition and praise from customers.

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