12,5m DN20 item no. 500142
20,0m DN16 item no. 500141.1
20,0m DN20 item no. 500142.1
Our latest pipe model SUN–Twin-Flex® is the perfect solution for time and cost saving laying of pipes for solar heating systems and many other tasks in the field of building services. The high-quality stainless steel pipe made of 1.4571 (V4A) can be processed without having to use special tools. A set of fittings and clamps is enclosed in every box. As a standard, we deliver in two lengths, in 12.5 m and 20.0 m and in the dimensions DN 16 and DN 20. The SUN -Twin-Flex® pipe is provided with a 14 mm strong solar HT pipe insulation. Due to a special manufacturing technique, this insulation features no adhesive areas and therefore is temperature resistant up to +175°C. The insulation contains no CFCs and PVCs.
Temperature range: -40°C to +175°C.
Thermal conductivity: at 40°C: 0,045 W/(mK).
Building material class: B2 – normally inflammable,
self-extinguishing, non-dripping, not flame-conducting.
Medium: Solarliquid-water-mixture 40:60.
Operating pressure : 4 bar, Operating temperature 40°C.
Fluid capacity: (ml/m, DN 16): 270
SUN–Twin-Flex® pipes fulfill the following regulations and standards:
DIN 1988, part 2 and 7; inspection subject to DIN 52612, DIN 52615, DIN 4102, part1, BS 476, part 7,
ASTM E 662-79. Test certificates D2464, D2468, D2611.