Corrugated stainless steel Flexi pipe Twin Insulated Coils are pre-assembled pipe systems featuring high-temperature and UV resistant insulation for use in various installations. Originally designed for solar thermal systems, customers have also found them useful for heat pump installs. With their flexible double tube design, these coils provide a quick, lightweight, and space-saving solution for connecting heat pumps to storage cylinders, even in tight spaces.
The clearly marked flow and return pipes can be easily separated, and the system's design allows for quick and economical connections even over large distances. With only two closed cell elastomeric foam extrusions, these coils reduce the risk of leaks and shorten installation time. They are made of high-temperature resistant EPDM and protected by a tough sheath to guard against mechanical damage.
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Available Sizes
- 41022510 - 10 Meters
- 41022515 - 15 Meters
- 41022525 - 25 Meters
- 41022550 - 50 Meters
To complete your installation, be sure to also have DN25 Backnut circlips and washers 42002530, and brackets 42002250 if needed.
Technical data
Corrugated stainless steel pipe
1.4404 - AISI316L
Insulation thickness
14 mm (2in2)
two-core silicone sensor cable
High-temperature resistant
EPDM up to+150°C continous load(+175°C intermittent)
Heat conductivity
λ (0°C) = 0,038 W/mK
λ (40°C) = 0,042 W/mK
Fire classification
Class E (according to BS EN 13501-1)
Water vapour transmission
µ ≥ 4500 (according to DIN EN ISO 12572)
