Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, which is known as the Pearl of North China. It is a key transportation hub in the Beijing-Tianjin-Hebei region and an integrated entity company specializing in the production, sales, installation of various fire-proof roller shutters, fire doors, security doors, and industrial doors. The company has a year-round training institution for cultivation, production, installation, and sales, and is a service-oriented company with strong cohesion and combat power. The company is equipped with state-of-the-art facilities, including multiple production lines for fire doors, security doors, and roller shutter processing equipment. Quality is a top priority.

Fire-resistant windows refer to windows that, along with their frames, can meet the requirements for fire resistance stability and integrity within a certain period. When there is insufficient fire separation between the exterior walls of two buildings, or between spaces separated by fire walls, and there is a need for lighting and ventilation, fire-resistant windows should be used.

Fireproof Window Categories:
Fixed Fire Window: A fire-resistant window without operable sash.

Operable fire-resistant windows: Fire-resistant windows with operable sashes and equipped with sash opening and closing control devices.

Insulating Fire Window (Type A): A fire-resistant window that meets both fire integrity and insulating requirements within a specified time.

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that meet the requirements for fire resistance integrity within a specified time. Divided by fire resistance limits and insulating properties:
Fire-resistant window selection:

Fire-resistant windows are made of steel, available in two grades: Grade A (fire resistance of 1.20 hours) and Grade B (fire resistance of 0.90 hours).

Fire-resistant windows are primarily used in fire walls of high-rise buildings, requiring the use of Class A fire-resistant windows that can close automatically.

When the horizontal distance between windows and doors near both sides of the firewall is less than 2 meters, Class B fire-resistant windows should be used.

In addition to residential buildings, kitchen windows in all other structures should be of Class B fire-resistant.

One and two-grade fire-resistant building lobby partition walls should use Class B fire-resistant windows when openings are made for windows.

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