Techdreno DW — High-Capacity Drainage

30% greater drainage capacity with a double-wall design

Tubo HDPE Techdreno DW parede dupla vista 2

Techdreno DW em padrão espinha de peixe em campo de futebol vista 4

Techdreno DW em vala com geotêxtil em obra de mineração vista 5

Diameters

110–200 mm

Resistance

2× NBR 15073

Extra Flow

+30% vs corrugated

Material

HDPE

Standard

NBR 15073

Double-wall HDPE drainage pipe with a smooth interior for 30% greater flow capacity and strength twice that of NBR 15073. Ideal for highways, airports, and large infrastructure projects.

Need built-in filtration? Check out the Techdreno KC

Downloads Agro Line Folder PDF — Commercial catalogue Technical Catalogue PDF — Full specifications

The Problem

Traditional corrugated pipes accumulate sediment in their internal grooves, reducing flow over time and requiring frequent and costly cleaning. On highways, at airports, and at large-scale construction sites, inefficient drainage compromises safety and accelerates pavement deterioration.

The Techdreno DW Solution

The Techdreno DW features a smart double-wall design: a corrugated outer wall for superior mechanical strength (twice that of NBR 15073) and a completely smooth inner wall for 30% higher flow capacity without sediment buildup. Zero clogging, constant and reliable drainage for decades.

Technical Specifications

Technical data of Techdreno DW — High-Capacity Drainage

Gauge	Nominal Diameter	O.D. (mm)	I.D. (mm)	Ring Stiffness	Open Area	Packaging
4"	110 mm	111.5 ± 0.5	95.0	SN 8	≥ 130 cm²/m	Sticks 6 m
6"	160 mm	161.8 ± 0.5	138.0	SN 8	≥ 180 cm²/m	Sticks 6 m
8"	200 mm	201.5 ± 0.8	168.5	SN 8	≥ 200 cm²/m	Sticks 6 m

Ring stiffness class SN 8 per ISO 21138-3 + NBR 15073 — certified crush resistance.

Why Techduto and not a reseller: since 1986, when it built Brazil's first corrugating machine by hand, Techduto has designed and manufactured its own line of corrugated pipes — it doesn't resell, it produces. Today, with factories in São José dos Campos (SP), Recife (PE) and Primavera do Leste (MT), the engineering behind Techdreno and Drainage Geocomposite is entirely its own. See our full history →

Why choose Techdreno DW

Plain Interior

2x NBR Strength

Smart Double Wall

Zero Maintenance

Non-toxic HDPE

+40% Agricultural Productivity

Applications

Where Techdreno DW makes the difference

Infrastructure

Highways and Roads

High-flow drainage of pavement base and subbase layers

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Energy

Photovoltaic Power Plants

Platform drainage and structural protection

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Agribusiness

Agricultural Drainage

Restoration of floodplains and increased productivity

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Infrastructure

Railroads

Ballast drainage for safe operations

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FAQ

Common questions about Techdreno DW — High-Capacity Drainage

The Techdreno DW features a double-wall design: a corrugated outer wall for mechanical strength and a smooth inner wall for 30% greater flow capacity. Conventional pipes are corrugated both inside and out, which can cause sediment to accumulate in the internal grooves.

Yes, we recommend using it with Bidim geotextile to filter out soil particles and prevent clogging. The exception is Techdreno KC: its micro-slots act as a self-cleaning filter and need no wrapping fabric.

Techdreno DW is available in 110, 160, and 200 mm diameters, supplied in 6-meter lengths.

Yes. Techdreno DW exceeds the requirements of NBR 15073 by a factor of two and complies with DNIT 093/2016 for ring compression, withstanding loads from highways and airports.

Over 50 years. HDPE does not corrode or undergo biological or chemical degradation, retaining its mechanical properties for decades.

Yes, the difference is significant. The smooth interior eliminates areas where sediment can accumulate and reduces hydraulic friction, resulting in a 30% increase in flow rate compared to pipes with a corrugated interior.