BD Ⅳ 118 Three-rail Thermal Break Sliding Window
Product Features
Superior Strength and Thermal Performance
High-strength multi-chamber aluminum profiles deliver excellent wind load resistance and thermal efficiency for year-round comfort.
Precision Three-Track Sliding System
Smooth-gliding three-track design with heavy-duty rollers and stainless steel tracks ensures effortless operation and long-term durability.
Advanced Weatherproof and Thermal Break Technology
Multi-layered sealing and thermal break construction effectively block wind, rain, and dust while reducing heat transfer for a quieter, cozier home.
Engineered for Extreme Conditions
Rigorously tested for high wind pressure, heavy rain, and corrosion. Ideal for coastal areas, high-rise buildings, and large balcony openings.
Maximized Opening with Slim Frame
Narrow frame profile and large glass panels maximize natural light and ventilation, giving your home a clean, modern look.
Product Parameter
Category | Specification |
|---|---|
| Standard Colors (Interior & Exterior) | Black Crystal / Dark Coffee / Metal grey |
| Glass(Optional Upgrades) | ALWEW standard |
| Hinges | ALWEW standard |
| Handle | ALWEW standard |
| Sealing System | Silicone wool pile + EPDM rubber strip |
| Thermal Break Strip | Alwew proprietary insulation strip |
| Sash Size Range (translation) | Width:380–1500 mm; Height:390–2000 mm |
| Thermal Insulation (W/m·K) | Level 6 |
| Sound Insulation (dB) | Level 4 |
| Water Tightness (Pa) | Level 4 |
| Air Tightness | Level 5 |
| Wind Resistance (KPa) | Level 7 |
