DTC HDPE Yellow Inner Rib Corrugated Pipe | Municipal Drainage Sewage Tube

Product Overview

DTC HDPE yellow inner rib corrugated pipe is a double-wall corrugated drainage pipe with special inner rib reinforcement structure, made of 100% virgin high-density polyethylene. The unique inner rib design greatly improves the ring stiffness of the pipe, effectively resisting soil extrusion and ground settlement damage. The bright yellow outer wall has high recognition, which is convenient for construction identification and later pipeline maintenance, and is the mainstream pipe material for municipal sewage and rainwater drainage projects.

Core Product Advantages

• • Inner Rib Reinforced Structure: Special inner rib design enhances ring stiffness, stronger anti-compression performance than ordinary double-wall corrugated pipes
  • Virgin HDPE Raw Material No recycled materials, stable physical properties, long underground service life up to 50 years

Yellow High-Visibility Shell

Distinct yellow color, easy to distinguish during construction, convenient for pipeline inspection and maintenance
• Excellent Anti-Corrosion & Anti-Aging Resist acid, alkali, sewage chemical corrosion, not easy to aging under buried environment
• Light Weight & Easy Construction Lighter than concrete pipes, convenient for transportation, excavation and butt connection
• Good Flexibility Adapt to slight ground deformation, effectively avoid pipeline cracking caused by settlement

Available Specifications

• Nominal Diameter: DN200, DN300, DN400, DN500, DN600, DN800, DN1000
• Ring Stiffness Grade: SN4, SN8, SN12.5, SN16 for different buried depth requirements
• Standard Length: 6m per piece, customized cutting length supported
• Connection Method: Rubber ring socket connection, good sealing, anti-leakage

Technical Specifications

• Raw Material: Virgin HDPE PE100 high density polyethylene
• Structure: Double wall outer corrugated + inner rib reinforced smooth inner wall
• Outer Wall Color: Standard bright yellow, custom colors available
• Execution Standard: GB/T 19472.1, EN 13476, ISO 9969
• Working Temperature: -40℃ ~ +60℃
• Service Life: Up to 50 years under standard buried conditions

Application Scenarios

• Municipal urban sewage main pipeline network
• Urban rainwater collection and drainage system
• Residential community underground sewage and rainwater drainage
• Park, scenic area and green belt drainage engineering
• Industrial park factory sewage discharge pipeline
• Road, tunnel underground drainage auxiliary pipes
• New rural domestic sewage treatment supporting pipes

Quality Assurance

All DTC HDPE yellow inner rib corrugated pipes are produced with full virgin HDPE raw materials without recycled fillers. Each batch undergoes ring stiffness test, hydrostatic sealing test, tensile test and impact resistance test before delivery. Complete product inspection reports and engineering bidding qualification documents can be provided. Matching rubber sealing rings and pipe fittings are supplied together to support one-stop pipeline procurement.

Contact us for diameter, ring stiffness selection and bulk project quotation!