Flexible steel pipe 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
Elastomeric (EPDM) insulating sheath made with closed "microcellular" structure, with the following specifications:
• 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 temped with refrigeraerature -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

Black smooth polyolefin copolymer outer film featuring high mechanical strength, and resistance to weathering and UV rays.
Silicone rubber 4-5 wire sensor cable with the following specifications:
• Rated voltage U° /U 300/500V
• Operating temperature -60/+180°C
• Cross-sectional areas 0,75 mm²