The glass of DERCHI doors and windows is manufactured by Hong Kong Xinyi Glass (stock code: HK0868), and the production standards are strictly controlled to ensure the safety and beauty of the glass. Choose us, not only choose a door and window, but also choose a clear, safe and comfortable living experience.
DERCHI doors are designed and built for optimum performance using the latest energy saving technology, providing maximum savings in any climate. They are the most energy-efficient dual-pane replacement doors in the industry with high performance insulated glass systems that exceed Energy Star requirements.
| SERIES | S9 Series Aluminum Casement Window with flyscreen |
| BRAND | DERCHI |
| PROFILE | 6063-T5 thermal break aluminum profile |
| THICKNESS | 1.8 mm aluminium thickness |
| AVAILABLE SIZE | Opening Panel: Width 400-750 mm / Height 400-1600 mm Each fixed panel ≤ 12 m² |
| GLASS | Double Tempered Glass 5mm+27A+5mm Triple tempered / Laminated / Low-E / Reflective / Tinted Glass |
| MIDDLE HOLLOW | 5MM+27A+5MM |
| HARDWARE | Germany brand WEHAG |
| SURFACE TREATMENT | Powder Coating, Anodized, Wooden Grain, PVDF Coating |
The S9 Series combines premium 6063-T5 thermal break aluminum profiles with high-specification insulated glass units from Hong Kong Xinyi Glass, significantly reducing thermal conductivity and lowering heating and cooling costs across all climate zones.
Yes, custom fabrication is fully supported. Operating casement panels accommodate widths from 400 to 750 mm and heights from 400 to 1600 mm, with individual fixed glass panels supporting dimensions up to 12 square meters.
DERCHI equips all S9 series casement systems with authentic German WEHAG hardware, engineered for long-lasting mechanical durability, smooth operation, and superior security performance.
Options include standard double tempered insulated units (5mm+27A+5mm), triple-pane tempered configurations, laminated safety glass, Low-E energy-saving coatings, tinted glass, and solar-reflective finishes.
We offer durable electro-statically applied Powder Coating, Anodized finishes, realistic Wood Grain heat-transfers, and high-performance PVDF coatings suitable for extreme weather and coastal environments.
Yes, the S9 Series comes integrated with a high-strength aluminum flyscreen system, providing reliable protection against insects while preserving clean sightlines and natural ventilation.