Pre-insulated pipe FLEXSTAR DUO 32+32x105: Pex-a pipe 32x2.9+32x2.9mm, d105mm, 6 bar, 80°C, double, thermal insulation with PUR foam, with corrugated LLDPE outer jacket 1091674

Pre-insulated pipe for efficient heating systems

The FLEXSTAR DUO pre-insulated pipe is an advanced solution for heating installations, especially in heat pump systems and district heating networks. The twin-pipe (DUO) design allows for simultaneous transport of medium in two directions, increasing installation flexibility and efficiency. Made of cross-linked polyethylene PEX-a with an EVOH anti-diffusion barrier, it ensures reliability and long-term protection against corrosion. The whole is surrounded by high-quality PUR foam insulation, minimizing heat loss and ensuring optimal energy efficiency.

Construction and properties

The FLEXSTAR DUO 32+32x105 pipe combines advanced materials and a well-thought-out design. The inner pipes made of PE-Xa with a diameter of 32 mm and a wall thickness of 2.9 mm are characterized by high flexibility and pressure resistance (up to 15 bar at 20°C). The PUR foam insulation with a thermal conductivity coefficient of 0.260 W/(m.K) effectively reduces energy losses, and the outer jacket made of corrugated LLDPE protects against mechanical damage and weather conditions. The corrugated surface facilitates installation and provides good adhesion to the substrate.

Advantages for installers and users

• Quick installation: The pipe's flexibility allows for easy routing of the installation, even in tight spaces, minimizing the need for elbows and connectors.
• High energy efficiency: PUR insulation significantly reduces heat loss, which translates into lower operating costs of the heating system. The thermal conductivity coefficient λ = 0.024 W/m·K is much better than traditional PE insulation.
• Durability and reliability: The EVOH anti-diffusion barrier protects against corrosion of metal elements of the installation, and the composite construction prevents moisture from penetrating inside the pipe.
• Versatile application: Ideal for heat pump systems (air-to-water), district heating networks and supplying heat to buildings.
• Easy identification: Patented marking system facilitates pipe identification on the construction site.
• Small bending radius: Allows laying pipes in a limited space without the need for additional connecting elements.
• Resistance to external conditions: The outer jacket made of LLDPE is resistant to UV radiation and mechanical damage.
• Compliance with standards: The system meets the requirements of DIN EN 15632-2 and DIN 4726 standards, guaranteeing high quality and safety of use.

The FLEXSTAR DUO pipe is an investment in thermal comfort and energy savings – both for professionals involved in the installation of heating systems and for end-users who value the reliability and efficiency of the solution.