Multilayer water pipe PE SDR11 90x8.2mm /100m/ 3012539

Layered water pipe made of PE-100 RC, with a diameter of 90 mm and SDR 11

The pipe is manufactured from high-density polyethylene PE-100 RC – a material with enhanced resistance to slow crack growth, significantly extending its service life under operational conditions. The blue color indicates suitability for potable water pipelines, while the sealed end prevents contamination during transport and storage.

The external diameter of 90 mm corresponds to the nominal diameter DN 80, meaning the pipe is designed for high-flow systems – ideal for main distribution lines in residential and industrial construction or water supply infrastructure. The wall thickness of 8,2 mm and SDR 11 ratio ensure mechanical stability at a maximum operating pressure of 16 bar, corresponding to PN 16 class. This allows safe conveyance of water under high pressure, even with significant temperature differences.

The thermal conductivity coefficient of 0,23 W/(m·K) means the pipe has low thermal conductivity – it does not conduct heat like metal, reducing heat loss in heating systems and preventing surface condensation. The wall roughness is only 0,007 mm, minimizing flow resistance and hindering sediment deposition – ensuring long-term performance without the need for frequent cleaning.

The thermal expansion coefficient of 0,2 mm/(m·K) indicates moderate expansion under temperature changes – proper design of expansion joints or free installation is sufficient to avoid stress. The pipe contains no thermal insulation or heating cables; it is a pure structural pipe ready for installation in any system.

The standard length is 12 meters, facilitating transport and installation in hard-to-reach areas. Connections are of the "pipe end" type – requiring appropriate connecting elements (e.g., socket joints with seals), but offering flexibility in system selection.

The pipe has no integrated socket or seals – it is not a ready-to-connect "dry-fit" component. It is designed for installers who know how to select appropriate fittings and welding techniques (e.g., electrofusion or butt welding). It also lacks an anti-diffusion layer, so it is not suitable for underground installations in areas exposed to chemical permeation.

In practice:

• Operates stably at temperatures from 0°C to 40°C
• Does not require additional UV protection during short-term outdoor storage
• Flow capacity: over 4 liters of water per meter of length – sufficient for multi-story buildings
• Resistant to corrosion and salt exposure – ideal for hard water regions

This is not an "all-purpose" pipe, but a precisely tailored component for pressurized systems – where certainty is required that it will not fail after years of service.