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K88/K92

The 88mm inward-opening casement window features an advanced A-series design with 6 multi-chamber profiles, significantly enhancing thermal insulation for superior energy efficiency. Engineered with steel lining for structural strength, EPDM rubber seals, and hollow glass with precision spacers, it ensures excellent airtightness, water tightness, and soundproofing. with a German ROTO handle, this system delivers exceptional durability, weather resistance, and market-leading performance for high-end residential and commercial projects.

Performance
SHGC
None
Ucog (W/m2*K)
None
Design Pressure
None
Water Penetration Resistance Test
None
Alr tightness(L/S- m2)
None
Professoional Certificates
Certificates

80+
PRODUCT TEST REPORT
American standard
Australian standard
Canadian standard
New Zealand standard
Other countries’ highest standard certification.


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Color selection
upvc(Standard)
  • white
selections of wood grain film-Exterior options
  • White oak
  • Walnut
  • Diamond gray gold
  • Metallic brown
  • Starry sky gray
selections of wood grain film-（The colors are the same both interior and exterior）
  • White wood grain
  • Gary teak
  • golden oak
selections of wood grain film-Interior options
  • Metallic white
  • Latte ash
  • sand gray
  • sand coffee
  • soot wood
aluminum (Standard)
  • JN310O
  • white
  • JL324O
  • JM382O
Cross-Sectional View

Recommended size of open cash

Sidelite & Transoms
  • ScreenShot_2026-04-03_131249_204
Glass Options
DECORATIVE AND SPECIALTY GLASS
TEMPERED GLASS

Tempered glass is a type of reinforced glass with 3-5 times the bending strength and 5-10 times the impact strength of ordinary glass. Our glass meets SGCC (USA) and AS2208 (Australia) standards. Its high load capacity makes it durable, and if broken, it shatters into small, harmless fragments for enhanced safety.

LOW-E GLASS

Low-E glass blocks infrared light from outside while retaining indoor heating and cooling energy, significantly improving energy efficiency and reducing HVAC costs. Our NFRC-certified Low-E options meet various SHGC and U-factor requirements for optimal performance.

WARM EDGE SPACERS

The spacer between glazing panes significantly impacts performance. Aluminum spacers, the standard choice, conduct heat 4,000-5,000 times more than insulation, causing edge condensation even in double glazing. Upgrading to warm edge spacers eliminates this weak point, improving thermal efficiency and preventing window crying.

LAMINATED GLASS

Laminated glass consists of two glass plies bonded with interlayers, creating a strong, uniform layer that holds together even when broken. Available in various thicknesses, it can incorporate coatings for insulation or low emissions. For specialized needs, PVB or SGP interlayers provide enhanced protection, including hurricane and bullet resistance.

Hardware
  • 10101027_01
  • 10101027_00
Handle
  • 铝合金门把手
Download
file name
language
format
size
download
K88 UPVC SYSTEM TILT AND TURN/HOPPER WINDOW
EN
PDF
929.74KB
FAQs
  • Q
    What are its main advantages?

    Answer: Key advantages include high energy efficiency, excellent sound insulation, natural aesthetics of solid wood, robust and durable structure, and superior sealing performance.

  • Q
    What glazing options are available? Is customization supported?

    We offer highly flexible glazing solutions that can be customized to meet the energy efficiency, safety, and acoustic insulation requirements of your project.

  • Q
    Do you provide product installation guidance or technical documentation?

    Yes. We can provide installation videos. Should you have any questions, please do not hesitate to contact us. We can also offer remote technical guidance for your team via online meetings.

  • Q
    Does your factory conduct factory inspections for potential clients? And what is the process like?

    We warmly welcome and encourage customers to conduct factory inspections. This is the best way to build trust. Please inform us in advance of your plans. We will assist you in obtaining the invitation letter and arrange a dedicated team to receive you.

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    • No. 26-2, 1st Floor, Kuiqi Road West Extension, Nanzhuang Town, Chancheng District, Foshan City, Guangdong Province, China
    • +86 13727521998
    • lyting@southholding.cn
    • Jocelyn Li
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      Contact Us
      Contacts: Shanw Ho
      Contact Number: +86 13727521998