Payment & Shipping Terms:
|Wind Resistance:||Grade 9 (Total Grade 9)||Gas Tightness:||Grade 7(Total Grade 8)|
|Water Tightness:||Grade 3(Total Grade 6)||Skeleton Of Door Leaf:||U53 Mm*12 Mm, 1.2 Mm Galvanized Steel Sheet|
|Fire Rating:||1.5 Hours||Type:||Single Swing|
|Thickness Of Steel Sheet For Door Leaf:||1.2 Mm||Thickness Of Steel Sheet For Door Frame:||1.8 Mm|
|Infilling:||Fireproof Perlite Board||Fireproof Sealing Strip:||FPJ-A-25 X 2|
Zhongwo Grade 3 water tightness tunnel fire proof steel door with wind loading is widely used in all kinds of public Fire -proof areas because of its solid structure and simple shape. Inlaid with fire -proof expansion sealing pieces, the door frame is made of high quality galvanized steel strip, which is one-time rolled and formed through the special production line, without impact sound when closing.
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.
Fire Resistance Rating(FRR):
Grade A: 1.5 Hours
Grade B: 1.0 Hour
Grade C: 0.5 Hour
Class A: also known as fully insulated door sets, it can meet the requirements of fire insulation and fire integrity at the same time within the prescribed time. The fire-resistance rating is 0.5h (Grade C), 1.0h (Grade B), and 1.5h (Grade A ) and 2.0h, 3.0h.
Class B: also known as partially insulated door sets, its fire insulation requirement is 0.5h and fire integrity rating is 1.0h,1.5h, 2.0h and 3.0h.
Class C: also known as no insulated door sets. There is no requirement for fire insulation. It only need to meet the requirement of fire integrity within the prescribed fire time and the fire integrity rating is 1.0h, 0.5h, 2.0h and 3.0h. We can get the content of no insulated door sets in BS standard.
|Door Frame||1.8mm Galvanized Steel Sheet|
|Fire Intumescent Seals||20*2 +25*2(W*T mm)|
|Fire&Sound Insulation Seals||15*20 (W*T mm)|
|Fire&Sound Insulation Door Core Board||(300±30) kg/m³|
|Door Leaf Panel||1.2mm Cold Rolled Galvanized Steel Sheet|
|Skeleton of Door Leaf||U53mm*12mm, 1.2mm Cold Rolled Galvanized Steel Sheet|
|Fire Resistance Rating||1.5 Hour|
Grade 9 (Total Grade 9)
Grade 7(Total Grade 8)
Grade 3(Total Grade 6)
1. It’s designed based on GB12955-2008 Standards Fire Doors, Wind Resistance GB/T 7106-2008, Gas Tight GB/T 7106-2008, Water Tight GB/T 7106-2008.
2. There is cold rolled galvanized steel sheet with 3mm for stiffening on fire hinge and fire closer point.
3. Filling Process for Door Core Material: Tamping
4. There is cold rolled galvanized steel sheet with 1.2mm around and inside the door leaf.
5. It’s applied in the Tunnel and special places where there is wind pressure. It adopts unconventional installation method.
Why Choose Us?
1. All of our fire doors are in top quality and at competitive prices.
2. Free pre-sales consult on any questions about fire doors.
3. Brand Advantage: We insist purchasing to be a reliable fire doors supplier for high-end real estate agents.
4. All fire doors can be customized as your request.
5. Good after-sale service.
More than 20 years experience in fire door industry.