Is it better to have an oversized fire door or a Grade A fire door

Fire doors can be consulted by Liandun Door Industry, Shanghai Liandun Door Industry **** is a professional enterprise specializing in the design, sales, installation and maintenance of metal doors and windows. The company's products cover a series of conventional products such as steel doors, steel fire doors, steel fire windows, steel roller shutter doors, steel fire shutter doors, stainless steel glass doors, stainless steel automatic doors, etc., and at the same time sell a series of innovative products such as steel fire and sound insulation doors, steel explosion-proof doors, steel explosion vent doors, steel airtight doors, steel large swing doors, steel large folding doors, steel large sliding doors and so on.

1.Different refractory periods.

The standard of Class A fire doors in China is that the fire resistance time should not be less than hours.

The fire resistance time of Class B fire doors should not be less than 1 hour. In terms of time, Grade A fire doors are more durable than Class B fire doors.

2.different fireproof materials.

The materials of Class A and B fire doors are different. Class A fire doors are made of superior materials and are of better quality than other grades. The average service life is about 6 years.

Class B fire doors are mostly made of wood and steel, and their service life is not as long as Class A fire doors.

3.Different thicknesses.

The thickness of the steel plate of the door frame and the door leaf of the Class A fire door and the Class B fire door is the same, the thickness of the door frame is mm, and the thickness of the door leaf is mm. But the thickness of the built-in fireproof perlite wool is not the same. The thickness of Grade A fire door perlite wool is 52mm, and the thickness of Grade A fire door leaf is 54mm.

The thickness of perlite wool for Class B fire doors is 46mm, and the thickness of leaf leaves for Class B fire doors is 48mm. Therefore, the Class A fire door is thicker than the Class B fire door.

4.Different mounting positions.

Usually, Class A fire doors are used in some important places, such as hospitals, shopping malls, warehouses, oil depots, power distribution doors, computer rooms, computer rooms and other fire escapes and flammable and explosive public places.

Class B fire doors are generally used for ordinary fire escapes, such as schools, residential buildings, offices, etc. Therefore, Class B fire doors are more widely used than Class A fire doors.

5.Distinct**.

Grade A fire door is the highest level of fire door, and the performance and material are the best, so it is relatively high.

The fire protection effect of Class B fire doors is not as good as that of Class A fire doors. During the installation process, it is necessary to analyze the site conditions of the building and reasonably select the most suitable fire door level.

Fire door recommendation: Wanjia, Dali-Daxi, Jinda, Panpan, Zhucheng.

1. Wanjia

Wanjia is a large-scale professional manufacturer of mechanical anti-theft locks in China, the executive director unit of China Security Industry Association, and has won the honors of Zhejiang Province Integrity Enterprise and Consumer Trustworthy Unit for many years. Denott is a high-end security door brand under Wanjia Group, a high-end security door brand, imitation copper series products, the surface is the same as the texture of copper doors, and changes the consumption concept of traditional consumers in appearance, quality and anti-theft performance.

2. Vigorously - great joy

Dali-Daxi is a large-scale group company specializing in the design, production and sales of anti-theft security doors, metal entrance doors, steel interior doors, steel fire doors, steel and wood fire doors, armored doors and has the right to export. National fire safety certification unit.

3. Jinda

Jinda is one of the most influential brands in China's door industry. It has successively won the titles of "China Safety Technology Prevention Certification", "Zhejiang Famous Brand", "National Quality Service Consumer Satisfaction Enterprise" and so on.

4. Panpan

Panpan Group is a multi-functional, diversified and export-oriented modern enterprise group with the production of Panpan advanced security doors, fire doors, safety windows, colored steel laminated wall panels, automatic garage doors, explosion-proof radiators, bicycle transmissions, and steel structures.

5. Casting sincerity

Zhucheng is a modern, professional, group category security industry science and technology manufacturers, more than 10 series of more than 500 kinds of products. It is the only modern, professional and group manufacturer in the Asian security industry that can provide a complete range of products.

Summary. Hello, I am very happy to serve you, here after the teacher inquired about the network publicity of Class C fire doors and Class A fire doors,,, Class A fire doors are more expensive,,, Class A fire doors are the most expensive, a difference of 20-50 yuan per square meter.

Class A, Class B, Class C fire doors.

Grade A ** is the most expensive, generally one square meter is 650, Grade B is about 620, and Grade C is about 580 yuan per square meter. May you be happy, with you, successful career, happiness and look forward to your <>praise

Which is more expensive, Class C fire door or Class A fire door?

Hello, I have seen the loss information of the collapse of the manuscript here, it takes a little time to inquire about your question group Qi Xiao and the text, please wait patiently for 3-5 minutes, thank you for your understanding I wish you good luck and the God of Wealth <>

Hello, I am very happy to serve you, here after the teacher inquired about the network publicity of Class C fire doors and Class A fire doors,,, Class A fire doors are more expensive,,, Class A fire doors are the most expensive, a difference of 20-50 yuan per square meter. Class A hail qiao, class B, class C fire door. Grade A ** is the most expensive, generally one square meter is 650, Grade B is about 620, and Grade C is about 580 yuan per square meter.

May happiness be with you, have a successful career, and look forward to your source Wu Jian praise <>