BestsellerSV-7800 Thermo Plus
The robust choice in opening systems for enhanced thermal insulation!
Uf from1,1 up to1,9 W/m²K
View System Price on request
Aluminium Windows
SV-4000 Thermo SI/HS
System code SV-4000 SI/HS·Thermal break
Price on requestGet a free quotation
The system that places special emphasis on thermal insulation (Super Insulation – SI).
- System
- Thermal break
- Uniform exterior appearance with the option for a hidden sash
- Superior functionality and aesthetics with the option for concealed hinges
- Superior functionality and aesthetics with the option for concealed hinges
- Superior functionality and aesthetics with the option for concealed hinges
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Free quotation · EN tested · 25-yr finish guarantee
01In detail
Overview
The system that places special emphasis on thermal insulation (Super Insulation – SI). SIVAL’s ultimate hinged solution for those who choose premium options in architecture and performance!
The perfect combination of superior performance and ergonomic design, aligned with architectural trends that emphasize clean, straight lines. Top-tier performance with a special focus on thermal insulation (Super Insulation) and soundproofing, achieved through advanced insulating technology and materials used within the profile chambers.
This system, available both in its standard form and with a hidden sash option, is part of the commemorative series bearing the "40 years Anniversary Series" logo!
02At a glance
What sets it apart
Uniform exterior appearance with the option for a hidden sash
Superior functionality and aesthetics with the option for concealed hinges
Superior functionality and aesthetics with the option for concealed hinges
Superior functionality and aesthetics with the option for concealed hinges
03Built in
Key characteristics
- Modern aesthetics with a straight-line design.
- Enhanced security with the use of a Multilocking Mechanism.
- Significantly increased thermal and sound insulation through:
- 34mm polyamide strips
- Option for double or triple glazing up to 44mm
- Fully recyclable co-extruded gaskets (EPDM – Expanded EPDM)
- Use of insulating materials like XPS and EPS
- Option for a hidden sash with a focus on minimal design.
- Special profiles for flush entrance doors.
- For complex constructions combining hinged and sliding systems in the same space, the SV-4000 Slide SI series is recommended.
04Tested performance
Technical specification
Figures depend on configuration, size and glazing — your quotation includes values calculated for your exact specification.
- Aluminium alloy | EN AW 6060 T6
- Hardness | 12 Webster
- Minimum paint thickness | 75µm
- Profile thickness | 1,3-2mm
- Dimensional tolerances according to | EN 12020-02
- Frame dimensions | 75mm x 50.6mm
- Glass sash dimensions | 85mm x 75.5mm
- Glass sash glazing thickness | 24 up to 44mm
- Polyamide width | 34mm
- Frame thermal transmittance coefficient | Uf from 1,1 W/m²K
- Sash maximum dimensions with Multilocking Mech. (WxH) | 1,0m x 2,3m
05Ways to build it
Construction types
06For specifiers
Section drawings
07Where it belongs
Applications & finishes
- Residential
- Commercial
- Renovation
- New Build
Every SIVAL system is finished to order: powder coating in any RAL shade (matt, satin or gloss), anodised tones, and textured wood-effect finishes including oak, walnut and rosewood. Dual-colour options let the interior differ from the exterior, and marine-grade pre-treatment is available for coastal sites. Powder-coated finishes are guaranteed for up to 25 years.
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Price the SV-4000 Thermo SI/HS for your project
Send your approximate sizes and we'll return a detailed quotation — free, itemised and without obligation.
Free, no-obligation quotes
Send drawings or approximate sizes and receive a detailed quotation within 2–3 working days.
Certified performance
Systems tested to EN standards for air, water and wind, with project U-value reports on request.
Guarantees that last
Lifetime structural warranty on profiles and up to 25 years on powder-coated finishes.
complete the project
Pairs well with
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