Spiral Duct
HI AIR KOREA Spiral Duct system is an approved range of spiral-seamed tubes and fitting with factory-fitted sealing gasket that provides a tight and reliable joint
HI AIR KOREA Spiral Duct system complies with eurovent 2.2 Class C specification. The high, uniform quality and the effective factory-assembled sealing system means that installation is fast and easy. HI AIR KOREA Spiral Duct System is leak proof when fitted and does not require any additional sealing. 

Benefits of the system

- Fast and easy installation
- Factory-fitted gasket without any loose parts.
- Adjustable-twisting and fine adjustment involve no risk of leakage
- Environmentally friendly as it is fitted without sealant which contains solvents.
- Can be installed in all kinds of weather
- Temperature resistant from -30℃~ 100℃ 
- Sealing minim'k of leakage in the event of damage
- Withstands negative and positive pressure up to 3,000 Pa.
- Internal and external production control.
- Aesthetic design - an advantage for visible installation.
- Unilume steel consists of aluminum (55% in weight ratio but 80% in surface volume ratio), zinc (43.4% in weight ratio), and silicone (1.6% in ratio) so it has both aluminum-unique corrosion-resistance and heat resistance and zinc-unique "galvanic behavior"
As outdoor exposure test(for 13years), Unilume is at least 3~4 times superior to galvanized steel.