





3 pane casement windows deliver thermal and acoustic performance for B2B project procurement. Built with thermal-break 6063-T5 aluminum and argon-filled double tempered glass, they suit residential and commercial exteriors.
- Thermal-break frame with PA66 strip for energy compliance
- 5+27A+5 mm double tempered insulated glass with argon gas
- WEHAG hardware with multi-point locking for security
- Custom 3-lite layout with operable and fixed combinations

Product Details
These aluminum casement windows use a thermal-break 6063-T5 frame available in 109, 118, and 127 mm depths. The PA66 insulation strip and argon-filled double tempered glass reduce thermal transfer, distinguishing them from non-thermal-break alternatives. The 3-lite layout typically features a fixed center with side casements or three vertical lites.
Outward opening casement windows save interior floor space while providing controlled ventilation. Operable and fixed lites combine flexibly to optimize daylighting and views for residential and commercial exteriors. Frame depth options support varying wind pressure and thermal performance needs, which buyers should confirm during quotation.
Product Features
Thermal-break Frame: PA66 insulation strip within the 6063-T5 aluminum profile reduces thermal transfer, supporting energy compliance and lowering heating and cooling costs.
Argon Insulated Glass: Standard 5+27A+5 mm double tempered configuration with argon gas provides safety and thermal performance for typical project requirements.
Flexible 3-lite Layout: Custom casement windows allow operable and fixed lite combinations, offering design flexibility to meet specific architectural ventilation needs.
WEHAG Hardware: Multi-point locking systems and dedicated hinges provide security and smooth operation for long-term outward opening performance.
Glass Upgrades: Options including Low-E, laminated, and triple glass allow project-specific performance tuning for sound, solar heat, or safety requirements.
Export Packaging: Wooden frames, PE films, and air bags protect units against sea water and transit damage for international sea freight shipping.

Customizable Styles
Glass Configuration: Standard 5+27A+5 double tempered with argon; upgrades include Low-E, laminated, triple, tinted, reflective, frosted, and bullet-proof options.
Frame Depth: 109, 118, or 127 mm family options available to match specific project wind pressure and thermal insulation requirements.
3-lite Layout: Fixed center with side casements, three vertical lites, or custom operable and fixed combinations per project drawings.
Color and Finish: Twelve options including Pearl White, Quartz Gray, and wood grains; fluorocarbon and custom coatings available with upcharge.
Size Customization: Opening sash and fixed glass dimensions tailored to project specs; confirm exact size limits per series during quotation.
Hardware Accessories
WEHAG Handle: Available in black or silver finish, providing smooth outward casement operation and long-term durability for daily use.
WEHAG Hinge: Engineered specifically for outward opening sashes, supporting stable operation across the permitted size range.
Multi-point Lock: Black two-point or six-point locking system by series, enhancing security and perimeter sealing when closed.
Casement Limiter: Optional simple or safety limiter for controlled opening; confirm specific pricing and selection during quotation.
Screen Options: Anti-theft, 304 high-definition mesh, diamond mesh, or 48-mesh high-transparency screen for ventilation and insect protection.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | U-Factor 0.23 | Confirm glass package and applicable NFRC or local standard. |
Wind Pressure Resistance | 5 KPa | Verify sufficiency against project wind pressure and local building code. |
Water Tightness | 700 Pa | Confirm target spec and verify against final series and test report. |
Air Tightness | 1.2 m3/(m.h) | Confirm classification grade and applicable standard for project market. |
Sound Insulation | 35 dB | Confirm glass configuration required and applicable test standard. |
Product Specifications
Specification | Details |
|---|---|
Product Name | 3 Pane Casement Windows |
Product Type | Outward opening aluminum casement window (3-lite) |
Frame Material | Thermal-break 6063-T5 aluminum |
Frame Depth | 109/118/127 mm family options |
Profile Thickness | 1.8-2.0 mm depending on series (confirm per series) |
Glass Type | 5+27A+5 mm double tempered insulated with argon |
Insulation Strip | PA66/DERCHI |
Hardware | WEHAG handle/hinge, multi-point lock |
Opening Style | Outward/awning for operable lites; fixed for non-operable |
Spacer | PVDF aluminum |
Sealing | EPDM (confirm per series) |
Supply Ability | 20,000 m2/month |
Customization | Size, color, glass, and layout per project drawings |
Notes | Confirm final series, dimensions, and specs before production |

Advantages
Frame Depth Options: Multiple depths (109/118/127 mm) support varying project performance requirements within one product family.
Layout Flexibility: Configurable 3-lite layouts accommodate diverse architectural designs and specific room ventilation needs.
Energy Efficiency: Thermal-break design with PA66 strip and argon glass supports energy-efficient building targets.
Itemized Upgrades: Options for glass, hardware, safety, and screens allow project-specific cost optimization.
Export Capacity: Export-grade packaging and 20,000 m2/month supply capacity support large-volume B2B procurement.
Application Scenarios
Apartment: The 3-lite layout maximizes ventilation and natural light in compact urban units; outward opening saves valuable interior floor space.
Home Office: Thermal insulation and 35 dB sound reduction foster comfortable work-from-home environments with controlled, quiet ventilation.
Hotel: Customizable 3-lite configurations and twelve color options suit hospitality interior design; WEHAG hardware ensures guest-friendly operation.
Office Building: Multiple frame-depth options and performance ratings meet commercial building code requirements for wind pressure and thermal efficiency.
Outdoor: Outward opening design and 700 Pa water tightness suit outdoor-facing enclosures; confirm weather resistance and installation conditions.
Residential Building: Flexible operable and fixed lite combinations address bedroom, living room, kitchen, and bathroom ventilation and daylighting needs.
Exterior: Thermal-break frame and Low-E glass upgrade options support energy-efficient facade design; confirm surface finish for exterior exposure.
Villa: Wood grain and custom coatings complement high-end residential architecture with performance-grade construction and versatile styling.
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
How do I request a quote for 3 pane casement windows?
Provide project dimensions, preferred 3-lite layout, glass configuration, color, and target market. DERCHI confirms series, performance specs, and current pricing.
What is the minimum order quantity?
Alibaba reference indicates 2 m2 MOQ with color and size customization. Confirm MOQ for your specific configuration and project volume during quotation.
Can I customize which lites are operable?
Yes, 3-lite layouts support fixed center with side casements, three vertical lites, or custom operable and fixed combinations per your project drawings.
What glass upgrades are available?
Standard 5+27A+5 double tempered with argon; upgrades include Low-E, laminated, triple, tinted, reflective, frosted, and bullet-proof glass options.
What certifications apply to this product?
NFRC, CE, AS2047, CSA, ISO9001 are cited on DERCHI official pages. Verify applicability to your specific model and target market before relying on them.
How are windows packaged for export shipping?
Wooden-frame packaging with protective tape, pallet fixing, plastic belts, PE films against sea water, and air bags between pallets for freight protection.

