The DERCHI WY-118L Series commercial metal window frames are aluminum casement windows for commercial fenestration applications, designed for commercial project buyers and distributors who require certified window systems. This outward-opening awning window meets NFRC, AS2047, and CE certifications, with additional testing available upon request.
- Manufactured in a 70,000+ m² facility with 600,000+ m² annual output and 200,000+ successful cases
- Served through 700+ distributors to customers in more than 100 countries
- 100% full inspection before shipment with one-stop customer service from ordering to shipment
- 20+ experts R&D team backed by 100+ national patents
Product Details
The DERCHI WY-118L Series commercial metal window frames are built as aluminum casement windows with a 118MM frame width and 1.8MM profile thickness, incorporating an S18 multi-cavity thermal break strip and a PVDF aluminum strip between double tempered glass panes filled with argon gas. The sash operates outward in an awning configuration, supported by a DERCHI-developed 13-inch flat open friction hinge and a DERCHI-developed transmission box, with a WEHAG handle available in black, silver, and antique bronze finishes and a WEHAGE lock point and lock seat system driving a Black Six Point Lock with invention patent. DERCHI supplies the complete window system including profile, hardware, accessories, glass, and finished products ready for installation.
Procurement teams should confirm the glass configuration—single, tempered, double-glazed, triple, insulating, laminated, or frosted—because the U-factor of 0.23 and SHGC of 0.20 apply specifically when the unit is configured with double tempered glass filled with argon gas. The WY-118L series supports ten customizable layout configurations combining fixed panels, casement sashes, and awning openings, and color finishes include two PVDF options (Retro Green, Mint Gold) plus ten stock color options including wood-grain textures, solid metallic, and matte finishes. Buyers should also verify delivery time of 25-35 days after deposit and drawing confirmation, the 10-year quality warranty covering frame unfading, hardware, and accessories, and the availability of engineering and supervising service to guide installation, with products meeting NFRC, AS2047, and CE certifications and 100% full inspection before shipment.
Product Features
- 1.8mm profile thickness and 118mm frame width on the WY-118L aluminum casement window — these dimensions set wall cavity depth and rough opening requirements for the installation plan.
- Outward opening / awning operation — this attribute requires exterior projection clearance and removes inward swing interference with interior fixtures.
- WEHAG no-base handle available in black, silver, or antique bronze — this finish choice determines visible hardware appearance for architectural color coordination.
- Six-point locking mechanism with invention patent paired with DERCHI-customized transmission boxes — this hardware configuration sets the security specification and confirms system-level integration compatibility.
- 13-inch flat open friction hinge independently developed by DERCHI — this hinge size controls sash hold position and maximum opening angle.
- S18 multi-cavity thermal break insulation strip — this strip type affects thermal performance selection for energy-code compliance targets.
- Double tempered glass with argon gas fill and PVDF aluminum strip — this glazing assembly sets acoustic and thermal performance levels for the project.
- Water tightness 700Pa, air tightness 1.2 m³/(m·h), wind pressure resistance 5K Pa, sound insulation 35 dB, U-factor 0.23, SHGC 0.20 — these ratings define specification thresholds for weather exposure, acoustic zoning, and energy code compliance.
- Full system supply including profile, hardware, accessories, glass, and finished products — this supply scope determines whether the project sources a complete system or individual components.
- NFRC, AS2047, and CE certifications with additional testing available upon request — this compliance scope informs documentation requirements for specific market jurisdictions.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options including wood-grain textures, solid metallic, and matte finishes.
- Glass configuration: seven options — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass.
- Double tempered argon-filled glass (5mm+27A+5mm with PVDF aluminum strip) yields a U-factor of 0.23 and SHGC of 0.20.
- WY-118L series supports ten customizable layout configurations combining fixed panels, casement sashes, and awning openings.
- Opening way: outward opening or awning.
- Hardware: WEHAG handle in Black or Silver, WEHAG 13-inch friction hinge, and Black six-point lock.
- Optional packaging: New 48 Pack or New 88 Pack.
Hardware Accessories
- Handle: WEHAG standard no-base handle in black, silver, and antique bronze finishes; DERCHI independently developed customized handle designs for the WY-118L series.
- Hinge: WEHAG hinge paired with a 13-inch flat open friction hinge independently developed by DERCHI for stable outward sash operation.
- Locking system: Black Six Point Lock with invention patent, integrated with the WEHAGE lock point and lock seat system for six-point locking.
- DERCHI developed and customized hardware components designed for consistent operation over repeated cycles, covered by a 10-year quality warranty including hardware and accessories working properly under correct operation.
- Named branded hardware components — WEHAG handle, WEHAG hinge, and WEHAGE lock point and lock seat system — are the specific compatibility references for this window system.
- Confirm handle finish selection and hinge configuration against project-specific sash size and opening direction requirements before specification.
Basic Parameters
| Performance Dimension | Product Value | Meaning & Evidence to Request |
|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; Standard DERCHI insulation strip | Measures heat transfer through the window assembly, reported as U-factor (lower means less heat loss) and Solar Heat Gain Coefficient (lower means less solar heat gain). Request the NFRC or ISO 10077-2 thermal test or simulation report and confirm the declared product configuration, specimen glazing, and boundary conditions match the project assembly. |
| Wind Pressure Resistance | 5K Pa | Measures the maximum wind pressure the window can resist without structural failure or permanent deformation, tested at a specified pressure with a defined specimen size and anchorage. Request the wind-pressure test report per ASTM E06.51, FGIA NAFS, or ISO 6613 and confirm the tested specimen dimensions and installation conditions match the project opening. |
| Water Tightness | 700Pa | Measures the window's resistance to water penetration under wind-driven rain at a specified test pressure and spray exposure, with leakage criteria defining the pass threshold. Request the water-penetration test report per ASTM E06.51, FGIA NAFS, or ISO 6613 and confirm the tested pressure and assembly configuration match the project exposure conditions. |
| Air Tightness | 1.2 m³/(m·h) | Measures the rate of air leakage through the window assembly under a pressure differential, reported per unit crack length or area, where lower values indicate less infiltration. Request the air-leakage test report per ASTM E06.51, FGIA NAFS, or ISO 6613 and confirm the pressure differential, specimen area, and tested configuration match the proposed assembly. |
| Sound Insulation | 35 dB | Measures the window's ability to reduce airborne sound transmission, reported as a weighted sound reduction index determined by laboratory testing of the full construction including glazing. Request the acoustic test report per ISO 10140-1 or ASTM E90 and confirm the tested specimen construction, glazing type, and thickness match the proposed configuration. |
Product Specifications
| Specification | Value |
|---|---|
| Glass Configuration | 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 in Black and Silver |
| Hinge | WEHAG Hinge (13-inch friction hinge) |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip |
| Opening Way | Outward Opening / Awning |
| U-factor | 0.23 (with double tempered argon-filled glass) |
| SHGC | 0.20 (with double tempered argon-filled glass) |
| Optional Package | New 48 Pack / New 88 Pack |
| Delivery Time | 25–35 days after deposit and drawing confirmed |
| Warranty | 10 years quality warranty |
- Confirmed production drawings
- Glass configuration selection
- Color finish selection
- Layout configuration selection
- Package selection
Advantages
- 15+ years of experience in aluminum windows and doors manufacturing
- 70,000+ m² factory with 4,000 m² showroom, 600+ employees, and 600,000+ m² annual output
- 200,000+ completed projects across 700+ distributors in 100+ countries
- 100% full inspection before shipment reduces project delivery risk
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001
- 100+ national patents and 50+ industry honors
- 20+ experts R&D team
- One-stop customer service from ordering to shipment
- Engineering team provides supervising service to guide installation
- Suitable for OEM/ODM cooperation
- Cooperates with raw material and hardware brands worldwide
- 10 years quality warranty
- The WY-118L Series is documented in the manufacturer's own product specifications, which state the supplier's manufacturing and quality-control capabilities
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Commercial office and hotel buildings | Aluminum casement window construction applied across commercial buildings, office buildings, and hotels. | Verify opening configuration and frame finish against project ventilation and aesthetic requirements. |
| High-rise commercial structures | Aluminum frame and casement operation specified for high-rise commercial structures. | Confirm frame anchorage method and installation details for floor-to-floor movement conditions. |
| Residential apartments and villa projects | Aluminum casement configuration applied in residential buildings, apartments, and villa projects. | Check glazing selection and frame finish against residential egress and aesthetic requirements. |
| Home offices | Casement opening with aluminum frame applied in home office environments. | Confirm opening style and hardware configuration suit ventilation and access needs. |
| Exterior applications in coastal or high-precipitation regions | Aluminum frame material applied for exterior use in coastal or high-precipitation regions. | Verify finish selection and sealant compatibility against local climate exposure. |
| Buildings near traffic corridors | Aluminum casement window applied in buildings near traffic corridors. | Confirm glazing selection and frame sealing suit project acoustic conditions. |
FAQ
What must be confirmed technically before ordering commercial metal window frames?
Buyers must confirm drawings, dimensions, color finish, and glass type, because pricing is based on these specific requirements. Layout configuration must be selected from 10 available options, and glass type from 7 available configurations. The full window system is supplied as a complete package including profile, hardware, accessories, and glass.
What should buyers prepare for volume procurement?
Buyers should prepare project drawings, dimension schedules, color finish selections from 2 PVDF or 10 stock options, and glass type specifications before requesting a volume quote. Optional packaging options (New 48 Pack or New 88 Pack) should be selected for volume orders. OEM/ODM cooperation is available for buyers requiring custom branding or specification alignment across large quantities. A global distributor network of 700+ supports volume order fulfillment and regional logistics coordination.
What certifications are available, and can additional testing be requested?
Products meet NFRC, AS2047, and CE certifications. Additional testing and certification can be provided upon buyer request.
What installation support is available for commercial projects?
Engineering and supervising service for installation is available for commercial projects.
