1 Hour Rated 45 mm Thick Single LHA Fire Safety Steel Door For Commercial Building

Fire Safety Door

Product Description

Zhongwo steel Fire door 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.

Parameters

Material:Key materials of steel fire doors include steel sheet and infilling materials. For door leaf we have 0.8mm thick galvanized steel; for frame 1.2mm. We provide different kinds of fillers such as magnesium oxide board, fireproof perlite board and honeycomb paper. All of them can help our fire doors hold up to 180mins in case of fire.
Door Thickness: 45mm, no matter how long the fire rating.
Door Weight: around 30Kg/m², about 65Kg per doorset.
Door Dimension(Overall with frame): 3 'x 7' for standard single door, max. 4’X8; 6 'x 7’ for standard pair door, max. 8 'x 8';
Finish: standard:powder coating; More to choose: wood grain, PVC coating
As for the color swatch, we have our own system with PBG1001(plain white), B1068(beige), PS2328(gray white) as regular colors. We can also introduce RAL color swatch for you.
Models: Flush Steel Fire Door; Steel Fire Door With Vision Panel.
Features: 1. 3mm thick galvanized steel plate on sides of hinges, closer and
locks.

• Double U-type 43mm X 25mm skeleton made of 1.2mm galvanized steel.
• 25mm X 2mm gap covering stripe made of 0.8mm galvanized steel.
• Glazing bead made of 0.8mm galvanized steel
• Steel covers on the lock sides made of 0.8mm galvanized steel for decoration
• Continuously welded edges

Technical Specification

1. It’s designed based on GB12955-2008 Standards Fire Doors, Sound Insulation GB/T 8485-2008.
2. There is cold rolled galvanized steel sheet for stiffening on fire hinge and fire closer point.
3. Filling Process for Door Core Material: Tamping
4. It’s suitable for places requiring better effect for sound insulation and fire insulation.

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.

Package

Henan Zhongwo Fire Science and Technology Co., Ltd, founded in 1995, is a rapid expanding manufacturing company in fire door industry. After 24 years development Zhongwo has become a leading fire door manufacturer all over in Central China. We are always keeping good cooperation relationship with many high-end real estate builders such as Green Garden and Evergrand and many reaseach institutes such as The Architectural Design And Research Institute of Henan Province. And we have always been enjoying good reputation around our partners domestically and internationally.

Our factory concentrate on the production of all kinds of fire doors from different materials such as galvanized steel, pine wood, chinese fir wood, 201/304 stainless steel and also fire resistant floating glass. Steel fire door is our highlight product, with advanced surface treatment such as powder coating, heat transfer printing and copper wiredrawing we win great advantage for our steel fire doors of high wear tolerance,high decoration performance, anti-damp performance and anti-rusty character and so on. As far as wooden fire door is concerned, we have painting free wooden fire door series, baking paint wooden fire door series and refuge room wooden fire door series.Now we can supply more than 100,000 fire door sets a year in our more than 50000㎡ existing workshop. We also have a new factory under construction which covers a field of 30 arces in Minquan of Shangqiu City,which is 200km away from our existing factory. By then our annual production ability can reach 300,000 fire door sets.

Our production ranges also to fire roller shutters, fire windows and smoke curtains of various customized sizes, colors and materials.

Zhongwo attaches great importance to technical explore and development of new products and technik. We organize a specialized technical panel who all have more than 8 years of R&D experiences in fire door industry for development of new products and technik. Thanks to their hard work we can lauch more than 5 patents a year.

Zhongwo always adheres to the value system of “creating value for customers, building platform for employees and developing brand for Zhongwo”. Under such value system, Zhongwo keeps looking for excellent partners to influence ourselves to become better. We keep striving in order to be a fixed star in the development history of door industry.