Factory-prefabricated Flexalen® components including specialized house connections, shift critical welding, insulation, and quality checks to the controlled factory environment. By eliminating on-site complexity, prefabrications reduce installation time significantly, lower costs, and ensure network reliability and standards compliance.
Reliable network components. Fast, safe installation. Guaranteed quality.
In district heating, cooling, and drinking water networks, joints, branches, and connections are the most critical components. Flexalen prefabricated components take this complexity off your hands. Every weld, insulation layer, and transition fitting is completed, tested, and inspected in a protected factory environment by certified professionals before delivery to site. The service pipes and connection elements are made of homogeneously welded polybutene (PB-1), the foam insulation is polyurethane (PUR) based, and the outer jacket is durable polyethylene, meeting EN 15632 and BRL KOMO 5609-2 standards.
Flexalen prefabrications are fully compatible with Flexalen 600, Flexalen PU piping systems, and all other Flexalen network variants, enabling seamless system integration across large and mixed networks. Factory prefabrication can reduce on-site connections to approximately 30% of traditional designs, shortening installation times, reducing labour costs, minimising project disruption, and guaranteeing consistent quality on every connection.
Available Prefabricated Components:
- Bends and Elbows (45° or 90°) for house entries and directional changes
- T-pieces, single or double, straight or raised for network branching
- Y-pieces, single and double lines, with tees for single-to-double transitions
- Prefabricated House Connections (PHC), complete flow/return connections up to 6m with multiple house connections per stick
- Custom Components, project-specific prefabrications designed to your network layout
Performance you can trust
Why choose Flexalen® Prefabrications
Select Flexalen prefabricated components when district heating, cooling, or water networks demand fast installation, guaranteed quality, and minimal on-site complexity.
Factory Certification & Quality Assurance
Custom-made by DVS-certified professionals with every weld, insulation, and transition inspected before delivery—guaranteed compliance with BRL KOMO 5609-2 and EN 15632.
Reduced Installation Time
Pre-insulated and tested components eliminate complex on-site welding and reduce overall installation time by up to 33% per house connection.
Fewer Field Connections
Factory prefabrication reduces on-site joints to approximately 30% of traditional network designs, lowering labour costs and risk of leaks.
Seamless System Compatibility
100% compatible with Flexalen 600, Flexalen PU, and all Flexalen variants—mix and match components for hybrid networks without compromise.
Minimal Neighbourhood Disruption
Prefabricated house connections with flow/return lines up to 6m with multiple connections reduce trench work and disturbance to residents.
Homogeneous Welded Connections
All connections are homogeneously welded polybutene—eliminating foreign materials and ensuring leak-tight, long-term reliability throughout the network lifespan.
See the impact in real projects
EXPERIENCE THE THERMAFLEX DIFFERENCE
Why work with us
Thermaflex combines decades of expertise with a commitment to sustainable innovation. As your trusted partner, we deliver more than products, we provide comprehensive technical support, proven solutions, and collaborative partnerships that help you achieve project success, regulatory compliance, and long-term operational efficiency across various markets and applications worldwide.
Trusted benefits
- Expert support
- Global experience
- Reliable delivery
- Flexible solutions
- Innovative approach
Partner advantages
- Sustainable practices
- Technical guidance
- Long-term partnerships
- Proven quality
- Customer-focused
FREE WHITEPAPER
The biggest mistake to avoid when calculating heating networks
Designing heating networks can be a real challenge. In this whitepaper you will learn all about the biggest mistakes to avoid.
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