What is Steel Fire Proof Door
Steel fire proof doors are a popular and sturdy material choice. Steel is a non-combustible material and will not feed a fire. Steel and other metal doors are typically more cost-effective than wood doors and come with a higher rating. In the field of construction, steel fire proof doors play a critical role. They are a core component of passive fire protection, designed to effectively prevent the spread of fire during fire incidents, ensuring the safety of lives and property.
High fireproof performance
The high temperature resistance of steel is very good, and it can maintain the structural stability for a long time under the high temperature environment and block the spread of fire. Steel fire proof door after special fire treatment, in the event of fire, can effectively isolate the fire spread, slow down the speed of fire spread, for the evacuation of people to fight for valuable time.
Good sealing performance
As the steel fire proof door is a complete system, which includes a number of components such as door frame, door leaf, door lock and so on. These components are strictly processed and carefully designed to achieve a better sealing effect. When a fire occurs, the fire door can effectively isolate the spread of smoke, toxic gases and high-temperature gases to protect the lives of people.
High strength and durability
As a kind of sturdy and durable material, steel has high strength and shock-resistant performance, which can effectively resist external impact and extrusion pressure. After reasonable structural design and strict quality control, steel fire proof door can withstand long time use and frequent opening and closing, not easy to be damaged and have a long service life.
Better anti-theft performance
Due to the solidity and durability of steel, steel fire proof doors can effectively resist external damage and illegal invasion. Steel fire doors are designed with multiple locking points and a stopper between the door and the door frame, which increases security and anti-theft performance.
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Place of Origin:China. Brand Name:JIAHUI. Model Number:JH-S-002. Door Material:Steel
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Place of Origin:China. Brand Name:JIAHUI. Model Number:JH-S-050. Door Material:Steel. Warranty:2
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Place of Origin:China. Brand Name:JIAHUI. Model Number:JH-H-042. Door Material:Stainless Steel
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Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-H-015. Door Material:Stainless
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Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-H-012. Door Material:Steel.
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Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-H-002. Door Material:Steel.
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Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-H-007. Door Material:Steel
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Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-H-011. Door Material:Steel.
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Place of Origin:Zhejiang, China. Brand Name:jiahui. Model Number:JH-H-020. Door Material:Steel
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Why Choose Us
Factory area
JIAHUI DOORS was established in early 90s of 20 century, We have 3 production facilities (SHANGHAI, ZHEJIANG, JIANGSU), the coverage area is around 100,000㎡.
Production capacity
Specializing in the production of fireproof doors, steel security doors, hospital doors, fireproof windows, fireproof roller shutters, soundproof doors, explosion-proof doors, ventilation doors, etc.
OEM solutions
Various designs and colors for you to choose and also we can accept custom made. And we have a strict quality control.
After-sales service
After years of practice and exploration, the leading technology, excellent quality provide our marketing development a strong guarantee.
Do Steel Fire Proof Door Have Automatic Closing Devices?
Many steel fire proof doors are equipped with automatic closing mechanisms, such as door closer. These mechanisms ensure that the fire door remains closed at all times. In the event of a fire alarm activation, these mechanisms ensure the rapid closure of the door, isolating the source of the fire and cutting off the path of fire spread. This is crucial because the ability to manually close the door may be hindered for various reasons, and automatic mechanisms compensate for this limitation.
Different buildings require doors with different fire resistance ratings, so the choice should be based on specific locations and purposes. Right steel fire proof doors are typically classified into 30-minute, 60-minute, 90-minute, and 120-minute fire ratings, indicating the amount of time they can withstand high temperatures and flames in the event of a fire. Selecting the right fire resistance rating is crucial in accordance with building regulations and safety standards.
Certification
The certification on the door should be your go-to in determining if a particular door is fire-rated. You can find these certification labels on the top or side of the door. The label will specifically say whether it is a fire door, and it will display the fire rating and other specifications of the door.
Gaps
Check the gaps around the top and side of the door and ensure they are less than 4 millimeters when the doors are closed. The gap on the bottom of the door can be slightly larger, but ideally, you should not be able to see light from under the door. This helps to minimize the amount of smoke and flames that pass through the gaps.
Seals
Check for intumescent seals around the door and ensure that they will expand when exposed to heat. These seals make certain flames and smoke cannot pass through the door.
Hinges
Ensure all hinges are firmly connected and that there are no missing screws. This will help make sure the structure of the door is solid and cannot be knocked over easily by falling objects.
Functionality
Make sure the door is functioning properly, particularly that it closes and latches firmly without sticking on the floor or frame. A fire door is only effective if it is completely closed, so it is crucial to ensure nothing prevents it from closing.
Tips for Choosing Steel Fire Proof Door
Check the appearance
A high-quality fire retardant door should have firm and evenly distributed welds. The surface should be sprayed smoothly. There should be product labels, quality inspection qualification marks, and quality certification marks in designated locations.
Check the numbers
The dimensions of qualified products should be equal to or smaller than the dimensions described in the sample description. The thickness of the door leaf should be equal to or greater than the thickness described in the sample description. The width of the side walls of the door frame should be equal to or greater than the width described in the sample description.
Check the seals
Qualified steel and wooden fire retardant doors should be equipped with fire-resistant seals. The seals should be straight and not arched, and there should be a qualified test report issued by a national-level testing organization.
Estimate the weight
High-quality fire retardant doors are generally heavier, while those that are very light are definitely inferior in quality.
Check the certificates
Fire doors, including 6 panel interior fire doors, are products that are covered by the type approval system. The products need to undergo type approval testing before they are sold. Generally, the type approval report describes the specifications, dimensions, composition, materials, and photos of the sample in detail. When purchasing, you should request the type approval report from the manufacturer.
The Correct Installation Method for Steel Fire Proof Door
Proper door frame installation
The proper installation of the door frame is crucial for the performance of steel fire proof doors. The door frame must be securely fastened to the wall, both vertically and horizontally. The dimensions and shape of the door frame must match the door leaf to ensure sealing performance. Incorrect frame installation can lead to the door failing to close tightly, affecting its fire resistance.
Correct sealing strip installation
Sealing strips are a critical component of steel fire proof doors, preventing the penetration of flames and smoke. Sealing strips must be correctly installed on the edges of the door leaf and the door frame to ensure sealing performance in the event of a fire. Installers should ensure the integrity of the sealing strips without any damage or defects.
Hardware installation
Lastly, ensure that the hardware on the door is installed correctly. This includes door locks, door closer, handles, and other related accessories. Door locks must be able to securely lock, and door closer must ensure the smooth closing of the door leaf in the event of a fire. The positioning of handles and other accessories must also comply with relevant standards and regulations.

The Difference Between Steel Fire Proof Doors and Other Materials Fire Doors
Steel fireproof doors differ from fire doors made of other materials, such as wood or fiberglass, primarily in their strength, durability, and fire resistance. Steel doors offer superior structural integrity and are less likely to warp or degrade under high temperatures, providing reliable performance during a fire. In contrast, wood and fiberglass fire doors, while also effective, may not offer the same level of durability and resistance to impact and environmental factors as steel doors.
Steel fire proof doors are usually composed of door frames, door leaves, interlayer fillings and fireproof locks. If there is filling material in the door leaf, it is filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, and equipped with fire-resistant hardware accessories to improve the performance of the door. The filling material in the door panel of the fireproof door is fireproof Class A non-combustible material (filled with fireproof rock wool, perlite and other materials).
Maintenance Tips for Steel Fire Proof Door
Clean foreign objects on the surface
This cleaning work is the most basic and can be done by anyone. It doesn't take much time. When cleaning the surface of the fire retardant door, use a cloth dipped in clean water or soapy water to gently wipe off the dust, impurities, rust, and other foreign objects attached to the surface of the fire retardant door.
Inspect the hardware components
The role of hardware components in fire retardant doors is self-evident. Once the components are damaged, the effectiveness of the fire retardant door will be compromised. Therefore, the inspection of fire retardant doors must be included in the maintenance plan. When inspecting fire retardant doors, it is best to hire professional technicians or experienced personnel. If any damage is found, repairs or replacements must be carried out promptly.
Pay attention to maintenance
Regularly check the integrity of fire retardant doors, including the fire retardant door material itself, whether the door closer and sequencer are functioning properly, and whether the fire retardant door can close in order. Check if the screws on the hinges and pivot hinges are loose. If any damage is found, immediate repairs should be organized.
FAQ
As one of the most professional steel fire proof door manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy or wholesale customized steel fire proof door made in China here from our factory.
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