A 36 x 54 casement window serves specifiers and contractors who need a made-to-size thermal-break aluminum opening with verified weather and sound performance. The DERCHI E5N Langyue system pairs argon-filled double tempered glass with German hardware for inward-opening or tilt-and-turn operation.
- Overall size 914 x 1372mm (approx. 1.25 sqm), suitable for single-sash or multi-lite configurations
- 85mm frame, 2.0mm wall thickness, 35mm PA66 insulation strip for thermal separation
- Standard 5+27A+5 argon glass with black PVDF spacer bearing the DERCHI logo
- Concealed tilt-and-turn hardware with 90-degree inward opening for interior maintenance
Product Details
The E5N Langyue system uses an 85mm thermal-break aluminum profile with a 2.0mm wall thickness and a 35mm PA66 insulation strip. The frame incorporates a three-seal system with glue-injected corner joints and silicone sealing to manage air and water infiltration. Standard glazing is 5+27A+5 double tempered insulating glass filled with argon gas, secured by an internal and external pressure strip process with optional 48/88 edge wrapping. The black PVDF/fluorocarbon spacer carries the DERCHI brand identity.
At 36 x 54 in (914 x 1372mm), the structure supports a complete single sash, a double-sash layout (approx. 457mm per sash), or a three-lite option (approx. 305mm per lite). The sash opens inward at 90 degrees, with an optional 180-degree tilt-and-turn accessory for controllable ventilation. The engineering manual lists the opening sash range as width 508-1000mm and height 600-2000mm, while the export website states 560-2000mm; buyers should confirm which height range applies to their specific configuration before finalizing drawings.
Product Features
- Thermal Break Architecture: The 35mm PA66 insulation strip and argon-filled double glazing help reduce heat transfer, supporting the 1.8W thermal insulation level for energy-conscious project specifications.
- Three-Seal Weather Protection: A triple-seal system combined with glue-injected corner joints and silicone sealing targets water tightness of 550-700Pa and air tightness of 1.2 for exposed wall conditions.
- Inward Maintenance Access: The 90-degree inward opening angle allows cleaning from inside the building, a practical advantage for mid-to-high-rise residential and commercial facades.
- Acoustic Insulation: Standard 5+27A+5 double tempered glass contributes to a 35dB sound insulation rating, which can be discussed further with upgraded laminated or sound-insulation cotton options.
- Concealed Drainage: The profile integrates concealed drainage channels to direct water outward without exposing functional gaps, preserving the frame's exterior appearance during heavy rain.
- German Hardware Integration: WEHAG/Winkhaus baseless handles and concealed tilt-and-turn hardware provide smooth operation, with optional fingerprint or password handles for access-controlled environments.
Customizable Styles
- Glass: Beyond standard 5+27A+5 argon, options include Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass to meet privacy and solar control needs.
- Frame and Color: Choose from Sand Gray, Dark Coffee, Black Crystal, White, Indigo Gray, Mint Gold, and official card shades like Retro Green or Pearl White.
- Size and Sash Layout: Configure as single sash, double sash (approx. 457mm each), or three-lite (approx. 305mm each); custom dimensions are supported per project drawings.
- Surface Finish: Powder coating, fluorocarbon, wood grain, and metallic flash silver finishes are available to match interior and exterior design schemes.
- Opening Configuration: Select 90-degree inward opening, optional 180-degree tilt-and-turn, or complex structures like fixed+opening, top transom, and multi-pane window walls.
Hardware Accessories
- Handle: German WEHAG/Winkhaus baseless handle comes standard, with optional fingerprint, password, or keyed handles for security and access control requirements.
- Tilt-and-Turn Mechanism: Concealed tilt-and-turn hardware supports the 90-degree inward opening action and integrates with the optional 180-degree accessory for ventilation.
- Screen Options: A flyscreen version is available where the glass sash and screen sash both open inward, with an optional keyed handle for the screen.
- Friction Hinge (Alternate Series): The S9 and R8Y outward-opening alternate series use 13-inch and 12-inch friction hinges respectively for different project needs.
- Locking System (Alternate Series): R8Y features a custom black zinc alloy four-face six-point lock, while S9 uses custom lock points and keepers for outward-opening security.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 1.8W level (E5N) | Confirm exact U-value and whether Low-E or argon is required to achieve this rating. |
| Wind Pressure Resistance | Approximately 5kPa (E5N) | Confirm exact level and testing standard for specific regional project requirements. |
| Water Tightness | 550-700Pa (E5N) | Confirm which value applies to the specific glass and sash configuration being ordered. |
| Air Tightness | 1.2 (E5N) | Confirm classification level and applicable testing standard for compliance submission. |
| Sound Insulation | 35dB (E5N) | Confirm if this rating applies to standard 5+27A+5 glass or requires upgraded laminated glass. |
Product Specifications
| Specification | Detail |
|---|---|
| Product Name | 36 x 54 Casement Window (DERCHI E5N Langyue System) |
| Product Type | Thermal-break aluminum inward-opening / tilt-and-turn casement window |
| Title Size | 36 x 54 in (914 x 1372mm), approx. 1.25 sqm |
| Material | Thermal-break aluminum, PA66 insulation strip |
| Frame Dimensions | 85mm frame width, 2.0mm wall thickness, 35mm insulation strip |
| Glass Type | 5+27A+5 double tempered insulating glass with argon gas |
| Spacer | Black PVDF/fluorocarbon spacer with DERCHI logo |
| Opening Style | 90-degree inward opening, optional 180-degree tilt-and-turn |
| Sash Options | Single sash, double sash (approx. 457mm each), three-lite (approx. 305mm each) |
| Hardware | WEHAG/Winkhaus baseless handle, concealed tilt-and-turn hardware |
| Alternate Series | S9 Xingguang (outward), R8Y Ruixuan (outward, security/typhoon focus) |
| Customization | Custom sizes, colors, glass, and structures available per project drawings |
| Notes | Opening sash height range differs between manual and export site; confirm before ordering. |
Advantages
- Verified System Performance: The E5N Langyue system provides documented thermal, sound, water, and wind resistance metrics, giving specifiers concrete data for project comparison.
- Extensive Configuration Flexibility: As a made-to-size product, it supports single to multi-pane layouts, special shapes, and diverse glass and color combinations for architectural coordination.
- Export-Ready Packaging: Four-layer protection including anti-scratch film, pearl cotton, waterproof film, and wooden racks with PE anti-seawater film supports safe maritime shipping.
- Brand and Hardware Identity: The DERCHI logo on the PVDF spacer and German WEHAG/Winkhaus hardware provide clear manufacturer traceability and operational reliability.
- Delivery Options: Door-to-door service or port delivery options are available, allowing buyers to align logistics with their project supply chain requirements.
Application Scenarios
- Apartment: In multi-unit residential buildings, the inward 90-degree opening allows residents to clean exterior glass safely from inside, while the 35dB sound rating helps manage urban noise.
- Home Office: Controllable ventilation via the optional tilt-and-turn accessory supports airflow during working hours without exposing the room to full outside elements or distractions.
- Hotel: The 36 x 54 size fits typical guestroom window proportions, and the choice of frosted or tinted glass addresses privacy needs while maintaining natural light entry.
- Office Building: For commercial facades, the thermal-break profile and argon-filled glass contribute to managing HVAC loads, and the three-seal system handles air infiltration at mid-floor elevations.
- Outdoor: When specified for exposed conditions, buyers should confirm the 550-700Pa water tightness and 5kPa wind pressure ratings against local weather data to ensure structural adequacy.
- Residential Building: The made-to-size frame accommodates standard rough openings in new construction, with color and finish options matching interior trim and exterior cladding schemes.
- Exterior: For exterior wall integration, verify the frame's installation conditions, jamb connections, and surface finish compatibility with the building envelope to maintain weather resistance.
- Villa: Architectural styles benefit from the diverse color card and wood grain finishes, allowing the 36 x 54 casement window to blend with both modern and traditional villa facades.
Inquiry Guidance
To request a quote, please share your project location, required size, quantity, preferred frame color, glass type, hardware requirements, and drawings or reference photos if available.
FAQ
What information is needed to get a quote for this window?
Buyers should provide project quantity, destination port, opening size drawings, desired glass configuration, color, and hardware preferences. This allows the 36 x 54 casement window supplier to calculate exact pricing and logistics.
Are CE, NFRC, or CSA certifications available for this product?
The S9 alternate series lists CE/NFRC/CSA certifications, but it is unconfirmed if these apply to the E5N series. Buyers must confirm certification availability for the E5N 36 x 54 configuration before ordering.
What is the exact opening sash height range for the E5N system?
The engineering manual states 600-2000mm, while the export website lists 560-2000mm. Buyers should confirm which height range applies to their specific 36 x 54 configuration before finalizing drawings.
Can this window be used for commercial B2B projects?
Yes, the commercial 36 x 54 casement window is a made-to-size product supporting multi-lite layouts and custom structures. Buyers should verify performance ratings and compliance documents against project specifications.
Are exact U-value and SHGC ratings available for the standard glass?
Exact U-value and SHGC ratings for the E5N 36 x 54 casement window are not published. Buyers should request these thermal performance values during quotation for the specific glass configuration required.
What warranty terms and installation documents are provided?
Precise warranty terms and detailed installation instructions are not specified in the available data. Buyers should request warranty duration and technical document availability from the supplier before ordering.
Are grilles, grids, or divided-lite patterns available?
The available data does not mention grilles or divided-lite patterns. Buyers seeking these styles should confirm availability and profile options with the supplier during the quotation process.
