Self Closing Steel Fire Doors

Fire doors are one of the measures for fire separation of buildings. They are usually required to be separated from smoke and fire at the entrance of the firewall, stairs, or the opening of the pipe well. Fire doors play an important role in preventing the spread and spread of smoke and fire and reducing losses.

Standard & Certificate

Zhongwo steel fire doors are all tested in accordance with American Standard NFPA252, ULC S104, UL10(b) and UL10(c). We can provide you with UL/WHI certificate for various sizes and fire ratings.

Fire Rating

Zhongwo steel fire doors meet the requirement for up to 180 mins(20/30/60/90/150/180mins) fire rating as American standard doors.

Material

Generally we see galvanized steel sheet with thickness of 20-18-16 Ga. for sashes; and 18-16-14 Ga. Galvanized steel sheet for frames. This kind of steel sheet is environment-friendly and green without any harm to people.
As Options we offer you also 304 and 301 stainless steel which are more beautiful in surface and more durable in performance.

Infilling

Standard infilling materials by us are fireproof perlite board with different densities in harmony with various fire ratings.
We have also mineral core, honeycomb paper and polyethylene foam for your options.

Finish

As far as the surface treatment is concerned, we have different choices for you, too. Powder coating is our standard. And prime paint, wood grain finishes are basic options. By the way, prime paint means water-based paint.

Size

For pair doors popular sizes by us are 6’X7’ and max. 8’X8’.
For single doors popular sizes by us are 3’X7’ and max. 4’X8’.
Customization is also acceptable.

Glass

A. Reinforcement channel is provided.
B. Glass frame and glazing bead is steel.
C. Glass is UL listed glazing material.
D. Maximum allowable glass area:2 Hours, 100 sq. in. Per door leaf (Fire lite)

Features

Hardware

As standard we equip every door with galvanized steel hinges, locksets and high quality door closers. We can also send you panic push bar, fire bolts, magnetic door stoppers or other accessories as your request. Melting temperature of hardware installed in doors should be no less than 950℃.
Besides, we also have stainless steel hardware when you want.

Package

Package method is vital to ensure the safety and to avoid any damage in transportation, so we values very much the correct package.
Standard: PE Paper+Double Layer Strong Carton or wooden pallet
We can also pack doors and frames as your request, just exchange the details with us.

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.