Bucalu established an industry-leading window and door laboratory and testing center. After ten years of relentless effort, our testing center now covers 4,000 square meters, with an investment exceeding 60 million yuan, performing approximately 11,000 tests annually. This has resulted in an extensive database and a wealth of technical expertise.
Product Details
Anti-dropping design is used in the connection between the friction hinge and frame/sash, which effectively avoids the risk of the sash falling off.
The multi mushroom-head-shape lock point & embracing-type keeper ensure the anti-prying safety ability can reach the EU RC2 security level.
Optional half-open lock makes it possible for ventilation, meanwhile reduces the risk of objects (or urchins) falling.
Exclusively designed hardware mechanism ensures the fast assemble and reliable quality.
Multi continuous sealing (without sealing breakpoints) & anti-shrinkage of rubber seal ensure higher sealing ability & window performance.
Ergonomically designed handle (S-plus single-sided handle) make operation easy and comfortable.
Frame flushes with opening sash, making whole windows neat and cleaning easy.
| Technical Information | level | |
| main frame thickness | 1.8mm | |
| opening sash max width/height | 900mm | 1700mm |
| opening sash max weight/glass thickness | 50KG | 48mm |
| sound insulation (GB/T 8485) | 42dB | |
| Technical Information | level | |
| water tightness(GB/T 7106) | ΔP≥700 (level 6) | |
| Air Leakage Resistance(GB/T 7106) Positive Pressure/Negative Pressure | q1≤0.5 [(m³/(m•h)] | q1≤0.5 [(m³/(m•h)] |
| Wind Load(GB/T 7106) standard mullion/heavy mullion | 1600Pa | 5000Pa |
| heat insulation (GB/T 8484) | 1.3W/㎡•K （adopt Low-E glass) | |
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