Zowor Door Industry Co., Ltd
Make Zhongwo a fixed star in the development history of the door industry.
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Product Description
Beams are connected with mullions by 90° angle welding, and the large size door frame can be assembled with bolts. The door leaf adopts the process that high-quality cold-rolled galvanized steel sheet is bent by the bending machine precisely, and its interior is filled with green and perlite board which has characters of fireproof, heat & sound insulation and its surface adopts technology without welding spots, so that to get smooth appearance.
Material
The door frame adopts cold rolled galvanized steel plate with thickness of no less than 1.2mm.
The door leaf adopts cold rolled galvanized steel plate with thickness of no less than 0.8mm.
Hardware fitting backboard adopts ordinary steel plate with thickness of no less than 3.0mm.
Hardware fittings:The famous high-grade fire lock, door closer, fire prevention hinge, sequencer, latch etc.with characteristics that flexible, safe, reliable, and so on. They are approved by the national recognized inspection authority, and the performance meet GB12955-2008 appendix A, B, C, D.
The Maximum Opening size is 2100(W)*2300(H) (mm)
Fire Resistance Rating(FRR):
Grade A: 1.5 Hours
Grade B: 1.0 Hour
Grade C: 0.5 Hour
Paramters
| Items | Grade B Steel Fire Door |
| Brand Name | Zhongwo |
| Product Name | Two Unequal Door Fan Steel Fire Safety Door with Fire rated 1 hour |
| Application | Large-scale shopping malls, high-grade office buildings, top-three hospitals, office buildings, schools, hotels, libraries, museums, business centers and other high-rise buildings and fire exit in public places
|
| Open Style | Side-hung, Opening Outward |
| Hardware | Lock, Closer, Hinges |
| Fire Protection Time (H) | 1.0 |
| Code | A1.50 |
| Thickness of Door Leaf (mm) | 45 |
| Thickness of Door Frame (mm) | 112 |
| Thickness of Steel plate for Door Leaf (mm) | 0.8 |
| Thickness of Steel plate for Door Frame (mm) | 1.2 |
| Fire Prevention Board | Available |
| Filled Material | Perlite Fireproof Board |
| Door Leaf | 2 |
| Fire Closer | 1 |
| Fire Latch | 2 |
Fire Resistance Rating Classification
| Name | Fire Resistance Performance | Code | |
|
Fully Heat Insulated Doorsets(Class A)
| Fire Insulation ≥0.50h Fire Integrity ≥0.50h | A0.50 (Grade C) | |
| Fire Insulation ≥1.00h Fire Integrity ≥1.00h | A1.00 (Grade B) | ||
| Fire Insulation ≥1.50h Fire Integrity ≥1.50h | A1.50 (Grade A) | ||
| Fire Insulation ≥2.00h Fire Integrity ≥2.00h | A2.00 | ||
| Fire Insulation ≥3.00h Fire Integrity ≥3.00h | A3.00 | ||
| Partially Heat Insulated Doorsets(Class B)
|
Fire Insulation ≥0.50h | Fire Integrity ≥1.00h | B1.00 |
| Fire Integrity ≥1.50h | B1.50 | ||
| Fire Integrity ≥2.00h | B2.00 | ||
| Fire Integrity ≥3.00h | B3.00 | ||
| No Heat Insulated Doorsets(Class C)
| Fire Integrity ≥1.00h | C1.00 | |
| Fire Integrity ≥1.50h | C1.50 | ||
| Fire Integrity ≥2.00h | C2.00 | ||
| Fire Integrity ≥3.00h | C3.00 | ||