zetaflex2

Twin-pipe in flexible steel preinsulated with elastomeric insulating sheath for solar heating system.

Properties of Steel pipe
Flexible corrugated extra low carbon austenitic AISI 316L stainless steel, to standard EN 10088-2 (DIN 1744: 1.4404)

Properties of Insulation
Two elastomer (EPDM) insulating sheaths with "microcellular" structure, with black plain polyolefin copolymer outer coating featuring high mechanical strength, and resistance to weathering and UV:
• Thermal conductivity at 40°C λ ≤ 0.040 w/mk
• Vapour diffusion resistance factor μ ≥ 5,000 (European standards EN 12086 – EN 13469)
• Reaction to fire CL 1 according to Italian standards UNI 8457 and UNI 9174
• Operating temperature -50°/+150°C (with peaks up to 180°C)
• UV resistant
• CFC/HFC/PVC free
• Noise reduction down to 28dB (A) according to Din 52218

Double black smooth polyolefin copolymer outer film featuring high mechanical strength, and resistance to weathering and UV rays.

Silicone rubber 4-or 5-wire sensor cable with the following specifications:
• Rated voltage U° /U 300/500V
• Operating temperature -60/+180°C
• Cross-sectional areas 0,75 mm²