The DERCHI aluminum casement louver window is an aluminum casement window suited for commercial, residential, and exterior applications, authorized by NFRC, CE, AS2047, CSA, and ISO9001.
- 600,000+ m² annual output with 700+ distributors trading in 100+ countries
- 100% full inspection before shipment with one-stop customer service from ordering to shipment
- 20+ experts R&D team holding 100+ national patents
Product Details
The DERCHI aluminum casement louver window is built with a 1.8MM aluminum profile and a 118MM frame width, incorporating an S18 multi-cavity insulation strip and a DERCHI standard insulation strip for thermal separation. The sash operates via outward opening or awning action on a 13-inch flat open friction hinge independently developed by DERCHI and a WEHAG hinge, with a WEHAG no-base handle available in black, silver, or antique bronze finishes. The locking system uses a WEHAGE lock point and lock seat with a six-point locking mechanism and a Black Six Point Lock covered by an invention patent. Double tempered glass with argon gas (5mm+27A+5mm) is installed with a PVDF aluminum strip between the panes, and the production process follows seven steps from surface treatment through packing.
Procurement teams should confirm the glass configuration from the seven available options (single, tempered, double-glazed, triple, insulating, laminated, and frosted), as thermal performance values apply specifically to the chosen glass configuration. The ten customizable layout configurations, combining fixed panels, casement sashes, and awning openings, and the color finishes—two PVDF options (Retro Green, Mint Gold) plus ten stock colors—must be specified before drawing approval. Delivery runs 25-35 days after deposit and drawing confirmation, with a 10-year warranty covering frame colorfastness and hardware operation under correct use. Products carry NFRC, CE, AS2047, CSA, and ISO9001 authorizations, and the factory applies 100% full inspection before shipment.
Product Features
- WY-118L model with 118MM frame width and 1.8MM profile thickness: Openings requiring a 118MM-wide structural dimension use this frame profile.
- Outward Opening / Awning operation: This swing direction keeps inward clearance unobstructed.
- S18 multi-cavity insulation strip: This thermal break fits projects requiring multi-cavity thermal separation.
- Double Tempered Glass with argon gas: This glazing suits applications requiring tempered safety glass with argon gas fill.
- WEHAG no-base handle in black, silver, and antique bronze: Hardware finish can coordinate with adjacent fixtures and trim.
- Black Six Point Lock with invention patent: This mechanism secures openings requiring six-point locking.
- 13-inch flat open friction hinge independently developed by DERCHI: This hinge maintains stable outward sash operation.
- DERCHI-customized transmission boxes for the WY-118L system: These boxes coordinate multi-lock hardware integration.
- Sound insulation rating of 35 dB: This rating addresses noise-sensitive rooms near traffic or urban environments.
- Water tightness of 700Pa and wind pressure resistance of 5K Pa: These performance values match exposed facades or high-rise installations.
Customizable Styles
- Glass configuration is selectable from seven options — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass — and the project's thermal performance requirements determine the selection; double tempered glass with argon gas (5mm+27A+5mm) yields a U-factor of 0.23 and SHGC of 0.20.
- Color finishes include two PVDF options (Retro Green, Mint Gold) and ten stock color options ranging from wood-grain textures to solid metallic and matte finishes.
- Layout is configured by combining fixed panels, casement sashes, and awning openings to match the project's opening-type and ventilation requirements.
- Opening way is configurable as Outward Opening or Awning.
- Handle finish is selectable in Black or Silver with WEHAG hardware.
- Optional packaging is available as New 48 Pack or New 88 Pack.
Hardware Accessories
- WEHAG handle in black, silver, and antique bronze finishes
- WEHAG hinge paired with the sash system
- 13-inch flat open friction hinge independently developed by DERCHI for stable outward sash operation
- Black six-point lock covered by an invention patent
- WEHAGE lock point and lock seat system operating with a six-point locking mechanism
- DERCHI customized transmission box
- DERCHI customized handle designs available for the WY-118L series
- Hardware sourced from global brands including WEHAG for handles and hinges
- 10-year quality warranty covering hardware and accessories working properly under correct operation
- Confirm handle finish and hinge type against project opening direction before final specification
Basic Parameters
| Performance Dimension | Declared Value | What It Means | Test Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; Standard DERCHI insulation strip / S18 multi-cavity | Heat transfer through the window assembly, compared using the declared rating, test method, specimen configuration, and project boundary conditions. | Request the applicable thermal test or simulation report and the declared product configuration. |
| Wind Pressure Resistance | 5 kPa | Structural capacity under wind load, reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. | Request the wind-pressure test report and confirm the tested specimen and installation conditions. |
| Water Tightness | 700 Pa | Resistance to water penetration, reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. | Request the water-penetration test report and confirm the tested pressure and assembly configuration. |
| Air Tightness | 1.2 m³/(m·h) | Air leakage rate, reviewed against the pressure differential, specimen area, reporting units, and tested configuration. | Request the air-leakage test report and confirm its pressure and specimen configuration. |
| Sound Insulation | 35 dB | Acoustic reduction, compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. | Request the acoustic test report and confirm that the tested construction matches the proposed configuration. |
Product Specifications
| Specification | Value |
|---|---|
| Glass | Double Tempered Glass with argon gas 5mm+27A+5mm, PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8 mm |
| Frame Width | 118 mm |
| Handle | WEHAG Handle, Black and Silver |
| Hinge | WEHAG Hinge |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip / S18 multi-cavity |
| Opening Way | Outward Opening / Awning |
| Friction Hinge Size | 13-inch |
| Optional Package | New 48 Pack / New 88 Pack |
| Water Tightness | 700 Pa |
| Air Tightness | 1.2 m³/(m·h) |
| Wind Pressure Resistance | 5K Pa |
| Sound Insulation | 35 dB |
| U-factor | 0.23 (with double tempered glass + argon) |
| SHGC | 0.20 (with double tempered glass + argon) |
| Warranty | 10 years quality warranty |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
- Order quantity
- Glass configuration selected from seven options: single, tempered, double-glazed, triple, insulating, laminated, and frosted glass
- Color finish selected from two PVDF options (Retro Green, Mint Gold) and ten stock color options
- Layout configuration selected from ten options combining fixed panels, casement sashes, and awning openings
- Opening way selected: Outward Opening or Awning
- Optional package selected: New 48 Pack or New 88 Pack
- Confirmed drawings with dimensions
Advantages
- 15+ years of experience in aluminum windows and doors manufacturing.
- 70,000+ m² factory area with 4,000 m² showroom and 600+ employees.
- 600,000+ m² annual output across 200,000+ successful cases.
- OEM/ODM capability, documented in the supplier's own product specification input, is supported by customization options and a global distributor network.
- Full window system supply: profile, hardware, accessories, glass, and finished products ready for installation.
- 100% full inspection before shipment.
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001.
- 100+ national patents including invention, appearance, and design patents.
- 20+ experts R&D team.
- One-stop customer service from ordering to shipment.
- Engineering and supervising service for installation available.
- Products can be tested and certified per buyer requirements.
- 25-35 day delivery after deposit and drawing confirmed.
- 10-year quality warranty covering frame, hardware, and accessories.
- 700+ distributors worldwide, trading with customers in more than 100 countries.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Coastal or high-precipitation commercial buildings | Evidenced for commercial buildings in coastal or high-precipitation regions | Confirm local wind-load and corrosion-resistance requirements |
| High-rise commercial structures | Evidenced for high-rise commercial structures | Confirm floor height and wind pressure zone |
| Buildings near traffic corridors | Evidenced for buildings located near traffic corridors | Confirm acoustic requirements |
| Commercial facilities with energy efficiency needs | Evidenced for commercial facility management with energy efficiency needs | Confirm thermal requirements and glazing options |
| Apartment buildings | Evidenced for apartment buildings | Confirm ventilation code and opening-size requirements |
| Office buildings | Evidenced for office buildings | Confirm daylight and airflow requirements |
| Hotels | Evidenced for hotels | Confirm privacy and noise control specifications |
| Residential buildings | Evidenced for residential buildings | Confirm local residential fenestration code |
| Home offices | Evidenced for home offices | Confirm light control and ventilation needs |
| Exterior applications | Evidenced for exterior applications | Confirm weather exposure rating and sealant compatibility |
| Villa projects | Evidenced for villa projects | Confirm architectural finish and style matching |
| Whole house customization | Evidenced for whole house customization | Confirm room-by-room ventilation and design requirements |
FAQ
What must be confirmed technically before ordering?
Shop drawings, frame color, and glass type, thickness, and color must be confirmed before production. Delivery takes 25–35 days after deposit and drawing confirmation.
What should buyers prepare for volume procurement?
The window system can be supplied as a complete package including profile, hardware, accessories, and glass, or as finished products ready for installation. Optional packaging includes New 48 Pack or New 88 Pack for volume orders.
How is pricing determined for custom louver window orders?
Price is based on the buyer's specific requirements, including shop drawing, frame color, and glass type, thickness, and color.
What warranty coverage applies to the aluminum louver window system?
A 10-year quality warranty covers the frame, hardware, and accessories.
Is installation support available for project orders?
Engineering and supervising service for installation is available.
What is the difference between outer dimensions and vent opening?
A clear distinction between outer dimensions and vent opening is critical for proper fit, so buyers should specify which dimension the shop drawing references to avoid sizing errors.
