China Six Chambers UPVC Profile for Windows

Lumei 70 System which applies advantage design ideas such as section bar design featuring six cavities, thick wails arid large sections, energy-saving glass installation design and unique wall installation technologies at door openings is the most high-end energy-saving window and door system in China. This product is especially suitable for severe cold areas, which is mainly used in the window and door systems of villas and high-end civil buildings
The advantages of 70 open doors and windows series:
- The main section bar with a six-cavity structure has good thermal-insulating and energy-saving effects, which is one of the most high-end section bar systems in the current market.
- It applies independent drainage cavity design to improve the drainage performance of finished windows.
- It can be designed into in-swinging casement windows, inward tilt-turn windows, fixed windows,
- Through connection materials, it can form connection in any angle.
- It can be equipped with three-layer and double-layer hollow glass at large intervals.
- With simple, utility and highly operable technologies, it is suitable for industrial production.
- 4-level air tightness, 3-level water tightness, 4-level wind pressure resistance and 8-level thermal insulation.

Energy Saving Index ParametersProfile structure: 6 charmbers with triple seal Heat transfer coefficient: uf=1.0w(k.m2)Wind load resistance: up to 6500Pa

Different requirements for heat transfer coefficientGlass Maching1.8w/(k.m2)1.05 (5+12Ar+5+12A+5Low-E) Triple glass2.0w/(k.m2)1.42 (5+12A+5+12A+5) Triple Glass2.1w/(k.m2)1.45 (5+9Ar+5+9A+5) Triple Glass2.4w/(k.m2)1.52 (5+9A+5+9A+5) Triple Glass2.6w/(k.m2)1.36 (5+12Ar+5Low-E) Double glass2.0w/(k.m2)1.9(5+12A+5) Double glass2.1w/(k.m2)1.75 (6+9A+6) Double glass

70mm uPVC Profile use for Triple seal and Double glass window