What is the rating of fire doors?

Fire door I believe that everyone is not unfamiliar to it, this door belongs to a higher safety factor, but also has the fire characteristics. Many people will consider the type, style, brand, and grade of fire doors when they select them. Following small to tell you about the grading standard fire doors and fire doors is what how much money one square.

What is the classification standard of fire doors ?

The classification of fire doors in fire protection is clearly stipulated. At the same time, some adjustments have been made to the original fire door rating after referring to the new standards. The classification of fire doors was originally classified by insulation fire doors instead of insulation fire doors (A), departmental fire doors (B) and non-insulated fire doors (C); The adjustment of the fire resistance limits of Class A, Class B, and Class C fire doors to 1.5h, 1.0h, and 0.5h has also increased the number of types of fire door products. This has increased the scope for practical application and only requires Fire doors have the application of departmental insulation or fire-resistance requirements. They can be fireproof doors with insulated or non-insulated sections.

1. Class A fire doors: Class A fire doors, also known as fully insulated fire doors, can meet the requirements of fire-resisting, heat-insulating and fire-resistant integrity at the same time, and the fire-resistance grades are 0.5h (Grade C). ), 1.0h (grade B), 1.5h (grade A) and 2.0h, 3.0h.

2. Class B fire doors: Class B fire doors, which are called insulated fire doors, have a fire-resisting insulation requirement of 0.5 h and fire-resistance integrity ratings of 1.0, 1.5, 2.0 and 3.0 hours, respectively.

3. Class C fire doors: Class C fire doors, also known as non-insulated fire doors, are not required for fire-resisting insulation. They only meet the requirements of fire-resistance integrity during the specified fire-resisting time. Fire-resistance integrity levels are 1.0h, 1.5h, 2.0h, 3.0h. In the British BS standard, there are non-insulated fire doors.

How much is a fire door?

1, steel fire door prices

The price calculation method for steel fire doors is based on the square calculation. Some people also like to use helium. When the number is small, it is more cost-effective. For example, single door price, double door price, etc., it is necessary to know the different sizes. The price is different. According to the market price, steel fire doors are about 450-650 yuan per square or so, and there is not a uniform price. It is necessary to know that there are certain differences in different cities.

2, wooden fire door price

Wooden fire door prices, then it ultimately depends on the style, fire rating and other elements, the most widely used is a wood-based paint-free style, this use rate of up to 90%! Wood fire doors in the market The price, if it is generally 270-470 per square or so for those ordinary woods, the price of the better material is also going up.

3, large fire door prices

Large fire doors are generally provided for companies or factories with special needs. Regardless of the choice of materials, the standards of the process, or the hardware, etc., it can be said that they all have strict acceptance standards. If you look at the price, you can say that the price of this door is more than ten times the price of ordinary doors. The price determines the value, which can be seen from the high safety and fire-resistant capability of the oversized fire doors.

Summary: About classification of fire doors and fire doors standard is what how much money one square content on the introduction to this, with the above in detail, I am sure the fire classification standard door also have a certain understanding, as it comes Price, to know the factors that affect the price is still more, the above price is for reference only, I hope the above introduction will help everyone.

High Frequency Ranging Sensor Module

A high frequency ranging sensor module is a device that uses high-frequency signals to measure the distance between the sensor and an object. It typically consists of a transmitter and a receiver, which emit and receive high-frequency signals, respectively.
The module works by sending out a high-frequency signal, such as ultrasonic or radar waves, and measuring the time it takes for the signal to bounce back after hitting an object. By calculating the time of flight, the module can determine the distance between the sensor and the object.
High-frequency ranging sensor modules are commonly used in various applications, such as robotics, industrial automation, and automotive systems. They provide accurate distance measurements and can be used for obstacle detection, object tracking, or proximity sensing.

Laser Distance Sensor Arduino,Laser Distance Sensor Analog Output,Precision Laser Distance Sensor,Optical Distance Sensors,USB Laser Distance Sensor

CHENGDU MESKERNEL INTEGRATED TECHNOLOGY CO.,LTD , https://www.meskernel.com