Super Heavy Duty HDPE SN12.5 Corrugated Pipes
Eight sizes in stock. Built for drainage jobs where load, depth, and long-term flow performance all matter.
Hard Hat’s corrugated HDPE pipes carry an SN12.5 ring stiffness rating — the classification used for heavy-duty drainage applications involving deep burial and vehicular load. The SN number measures how much external radial pressure the pipe wall resists before deforming. A higher SN rating means the pipe maintains its circular cross-section under greater soil and traffic load, which directly affects flow capacity and long-term system reliability.
HDPE as a material absorbs water at under 0.01% by mass, which makes it inherently resistant to the internal degradation that affects concrete and uncoated metal pipe over time. It does not rust, does not corrode in chemical or biological wastewater environments, and does not crack under the kind of ground movement that can fracture rigid alternatives. The corrugated outer profile transfers external load around the pipe wall rather than concentrating stress at any single point, which allows the pipe to flex slightly under load without losing structural integrity.
For drainage installations in Guyana — farm drainage, roadside drainage, culverts, and runoff management — these properties mean reduced maintenance risk and a more reliable system over the full service life of the installation.
Size and Pricing
| Size | Price (GYD) |
|---|---|
| 8 inch | 28,000 |
| 12 inch | 52,000 |
| 16 inch | 78,000 |
| 20 inch | 135,000 |
| 24 inch | 174,000 |
| 32 inch | 265,000 |
| 40 inch | 380,000 |
Bulk discounts available. Contact Hard Hat for multi-unit pricing.
Key Specifications
- Ring stiffness class: SN12.5 (heavy-duty rated)
- Material: High-density polyethylene (HDPE)
- Water absorption: less than 0.01%
- Corrosion resistance: full — no metal components, no rust risk
- Profile: corrugated outer wall for load distribution
- Available diameters: 8, 12, 16, 20, 24, 32, 40 inch
Typical Applications
- Farm and agricultural drainage
- Roadside and culvert drainage
- Stormwater and runoff control
- Site drainage during construction
- General underground water management
Ready to order or need help selecting the right size? Call or WhatsApp 726-3428, or visit Lot 24 Novar, Mahaicony.