When it comes to modern infrastructure, innovation isn’t only about materials — it’s about method. Every meter of trench dug, every load of soil displaced, and every litre of fuel consumed affects both the environment and project efficiency. That’s why Fibreflex piping systems are redefining how we think about sustainable construction and network installation.

As Europe moves steadily toward sustainable and energy-efficient heating solutions, biomass systems are becoming an increasingly important part of the energy landscape. From municipal heating grids to rural district networks, biomass heating plants offer a renewable and cost-effective way to produce thermal energy.

In today’s rapidly evolving energy landscape, the demand for efficient, sustainable, and flexible heating networks is higher than ever. Whether supplying renewable heat from biomass, distributing low-temperature energy, or connecting multiple buildings, the choice of piping system plays a crucial role in ensuring long-term performance and reliability. FibreFlex has established itself as a leading solution for modern district heating applications. Its innovative design combines excellent thermal insulation, high pressure resistance, and installation flexibility — making it the perfect fit for biomass heating networks, low-temperature systems, and building connections alike.

We are delighted to announce that Radius Group will be participating in K Show 2025, the world’s leading trade fair for the plastics and rubber industry.

When the Bavarian village of Pfofeld set out to build a district heating network, the goal was clear: reduce dependence on oil and gas, lower heating costs, and use local renewable resources such as wood chips and waste heat from biogas plants.

But one major obstacle stood in the way: how to transport hot water under high pressure across steep hills at a reasonable cost. The solution came with FibreFLEX pipes, a groundbreaking technology that made the entire project possible.

The Municipality of Dogliani, together with Dogliani Energia (part of the Iren Energia Group), is developing its first district heating network with PNRR funding. Beyond the environmental benefits — a reduction of ~1,400 tons of CO₂ per year — the project stands out for its engineering innovation: the replacement of traditional pre-insulated steel pipes with FibreFlex flexible pre-insulated piping systems.

The jointing process for FibreFlex Pro preinsulated reinforced flexible pipes is designed to combine speed, simplicity, and exceptional durability, ensuring a secure and leak-proof connection every time.

The system uses mechanical axial compression couplers, installed using hydraulic clamps specially engineered for this application. This method eliminates the need for pipe-end expansion, streamlining installation and reducing labor time on-site.

In modern infrastructure projects, pipe design efficiency directly impacts cost, performance, and sustainability. One design innovation that delivers measurable benefits is reduced wall thickness: a feature engineered into RK Infra’s Fibreflex flexible pipes.

Pipes may seem simple, but in reality, they are the silent workhorses of modern infrastructure. At RK Infra, we manufacture and supply high-quality pipes that power essential systems in St. Valentin, Linz, and Enns: from municipal water networks to industrial processing plants. Built with precision and designed for longevity, our pipes are trusted by engineers, contractors, and developers to keep projects running smoothly.

Pre-insulated FLEX pipes revolutionize pipeline installation with trenches up to 25% narrower than traditional steel pipes. This breakthrough technology offers significant advantages including reduced excavation volume (25-35% less), lower installation costs (up to 30% savings), and accelerated project timelines (15-25% faster). The lightweight, flexible, and corrosion-resistant properties of fibreflex pipes minimize environmental impact through reduced soil disturbance, lower carbon emissions, and decreased waste. Real-world implementation by RK Infra demonstrates impressive results: 32% less excavation, three-week faster completion, and 18% cost reduction. Fibreflex pipe technology represents a sustainable evolution in infrastructure development, delivering superior outcomes for both clients and the environment.

When it comes to building reliable infrastructure—whether for municipal water supply, industrial systems, or residential plumbing: the type of pipe you choose matters more than ever. With the evolution of piping technology, the decision is no longer limited to traditional materials like steel. Today’s projects demand solutions that balance strength, flexibility, installation efficiency, and long-term durability.

Revolutionizing District Heating:
Discover how FibreFlex® Pro by RK Infra is setting new standards in district heating infrastructure. Combining the durability of steel with the flexibility of plastic, this innovative pipe system delivers superior energy efficiency, rapid installation, and long-term performance across diverse environments.