Overview
Heyuan fireproof windows are engineered to withstand extreme heat and flames, typically offering 60–120 minutes of fire resistance. They integrate tempered glass with steel or aluminum alloy frames, often coated with anti-corrosive layers. Widely used in China’s Guangdong province, these windows meet national fire safety codes (GB 50016) and are mandatory in high-rise buildings, hospitals, and industrial facilities. Their design balances safety with functionality, allowing natural light while acting as a barrier against fire and smoke. Modern variants also include thermal insulation properties, reducing energy loss in climate-controlled environments.
Structure and Working Principle
The window comprises a multi-layered structure: a fire-resistant glass pane (often wired or ceramic), a steel frame with intumescent seals that expand under heat, and reinforced hinges. The glass is treated to resist shattering, while the frame maintains structural integrity during exposure to flames. When exposed to fire, the intumescent seals expand to fill gaps, preventing oxygen flow and smoke penetration. The glass layer may develop a protective char, further insulating the unexposed side. This dual-action mechanism ensures compartmentalization of fire hazards.
Key Features
1. **Fire Resistance**: Tested to endure 1–2 hours of direct flame exposure without failure. Performance is validated by third-party labs like Tianjin Fire Research Institute. 2. **Durability**: Frames are powder-coated or galvanized to resist weathering, making them suitable for coastal or humid regions. Hinges and locks are stainless steel to prevent jamming during emergencies. 3. **Aesthetic Flexibility**: Available in sliding, fixed, or casement styles, with options for tinted or low-E glass to match architectural designs.
Application Areas
These windows are critical in fire-prone zones such as kitchen walls, stairwells, and elevator shafts. Commercial applications include shopping malls, data centers, and warehouses where fire compartmentalization is legally required. In residential projects, they are installed in apartments adhering to China’s Class A fireproofing standards. Specialty variants with bulletproof or soundproofing features are used in government buildings and laboratories.
Maintenance and Precautions
Regular inspections should check for seal degradation, frame corrosion, or glass cracks. Clean with non-abrasive solutions to avoid damaging fire-resistant coatings. Avoid drilling into frames post-installation, as this compromises fire integrity. Storage before installation requires dry, covered conditions to prevent moisture absorption by intumescent materials. Always source replacement parts (e.g., seals) from the original manufacturer to maintain certification compliance.
B2B Procurement Guide
Buyers should prioritize suppliers with ISO 9001 and fire-safety certifications (e.g., CCCF). Request test reports (GB/T 12553) for fire endurance and thermal conductivity. Bulk orders (100+ units) often attract 10–15% discounts, with lead times of 4–6 weeks. Logistics considerations include shockproof packaging for glass panels and climate-controlled containers for sealants. Negotiate warranty terms—reputable brands offer 5–10 years for frames and 2 years for moving parts.
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