Founded in 2002, Suzhou Yuanda Purification is a professional manufacturer of purification doors, windows, and Sandwich panels. As an important role as Clean Room Fireproof Door Manufacturer and factory in China, we also provides clean room equipment and supporting products such as air shower rooms, transfer windows, fast-rolling shutter doors, fire doors, FFUs, and clean sheds. The products produced are widely used in industries such as electronics and appliances, biomedicine, food, cosmetics, new energy, and school scientific research.
After more than 20 years of development, to better serve its customers, the company has also established Suzhou PURIFY Purification Technology Co., Ltd. to customize solutions for dust-free workshop purification projects for various industries. It has a one-stop service system from comprehensive enterprise plant planning, design, construction, product production and supply to help customers create high-quality clean rooms and bring them a high-quality cleaning experience. The company has always adhered to the corporate spirit of "pragmatic, hard work, and responsibility", and created a good business environment with integrity, win-win, and innovative business concepts. With a new management model, refined technology, thoughtful service and high quality, we have always adhered to the principle of giving priority to customer satisfaction and serving them with care.
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READ MOREHow to choose the right fire door?
When choosing the right fire door, you need to consider multiple factors to ensure that it meets the safety needs and fire protection requirements of the building. Here are some suggestions for choosing fire doors, summarized in a clear format:
Fire rating:
Choose a fire door with an appropriate fire resistance rating based on the specific needs of the building and relevant laws and regulations.
Class A fire door: The highest level of fire door, with a fire protection time of not less than 1.5 hours, suitable for crowded places with high fire protection requirements, such as storage doors, fire equipment doors, etc.
Class B fire door: Intermediate fire door, with a fire protection time of not less than 1 hour, suitable for emergency exit doors, equipment rooms, places with high fire risks, etc.
Class C fire door: The lowest level of fire door, with a fire resistance limit of not less than 0.5 hours, mainly used for fire protection in transformer and distribution rooms, pipe well doors, etc.
Material:
Steel fire door: The material is high temperature resistant steel, filled with fireproof materials inside, with strong structural stability, suitable for high-rise buildings, emergency exits, etc.
Wooden fire door: Made of flame-retardant wood, it has a beautiful appearance, is light and convenient to open, and is suitable for home fire doors.
Steel-wood fire door: Combining the advantages of steel and wood, it has good fire stability and decorativeness.
Safety index:
Smoke resistance index: Ensure that the fire door can effectively isolate smoke.
Sealing index: The fire door should have good sealing performance to prevent the spread of fire.
Service life: Choose a durable fire door to ensure its long-term use effect.
Environmental performance: Consider whether the materials used for the fire door are environmentally friendly and pollution-free. Control the energy consumption of the fire door within a reasonable range.
Size and appearance: The size of the fire door needs to match the installation location. Choose the appropriate appearance design and color according to the decoration style.
Opening method: Choose the appropriate opening method according to the use occasion and convenience, such as normally open fire door (can be automatically closed by induction) or normally closed fire door.
Certification and standards: Ensure that the fire door complies with national and local fire safety specifications and standards, such as GB12955-2008 "Fire Door" and other relevant standards. Check if the fire door has the corresponding certification and certificate of conformity.
Cost: The cost of fire doors will vary depending on the material, fire rating, safety index and environmental performance. Choose the most cost-effective fire door within your budget.
Choosing the right fire door requires comprehensive consideration of multiple factors such as fire rating, material, safety index, environmental performance, size and appearance, opening method, certification and standards, and cost. By weighing these factors, you can choose a fire door that meets both building safety needs and budget requirements.
What types of fireproof materials are used to fill the inside of fire doors?
There are many types of fireproof materials filled inside fire doors. The following are several common fireproof materials and their characteristics:
Rockwool: Rockwool originated in Hawaii and is an insulating material made of molten rock fibers. Rockwool has good thermal insulation and high temperature resistance, which can effectively increase the fire resistance of fire doors. However, due to dust pollution problems, rockwool has been gradually eliminated by the market.
Perlite: Perlite is a non-toxic, odorless, non-flammable, and non-corrosive material for steel plates. Perlite does not melt or deform at a high temperature of 1100℃, and the combustion performance is tested to reach Class A, which meets the requirements of the new national standard for fire door filling materials.
Calcium silicon fireproof board: Calcium silicon fireproof board is a fireproof board composed of siliceous material and calcium material as the main raw materials, with reinforcing fibers added, supplemented by lightweight aggregates and adhesives. Calcium silicon fireproof board has excellent fireproof performance, and also has good sound insulation and heat insulation performance.
Needle-punched cloth phenolic insulation board: Needle-punched cloth phenolic insulation board is a new type of fireproof material that has been widely used in recent years. It is made of phenolic foam, and its main components are phenol and formaldehyde. Needle-punched cloth phenolic insulation board has the characteristics of non-toxic, non-combustible, low smoke, and high temperature resistance. The use temperature range is -250℃~+150℃. It overcomes the shortcomings of the original foam plastic insulation material, which is flammable, smoky, and deformed when exposed to heat, and retains the characteristics of the original foam plastic insulation material, such as light weight and convenient construction.
Aluminum silicate wool: Aluminum silicate wool is a fireproof material made of aluminum silicate fiber. Aluminum silicate wool has good fire resistance and thermal insulation properties, but it also has dust pollution problems and may be gradually eliminated by the market.
Cement: Cement is a common building material with good fire resistance. When making fire doors, cement can be used to fill the internal cavity of the door body to increase the structural stability and fire resistance of the door.
High-temperature plywood: High-temperature plywood is a board made of fire-resistant wood or glued wood. High temperature plywood has high fire resistance and can be used as the inner filling material of fire doors, providing good thermal insulation and fire resistance.
Refractory silicate: Refractory silicate is a special material with good fire resistance and thermal insulation. Refractory silicate can be used as the filling material of fire doors to provide additional high temperature protection.
When selecting the internal filling material of the fire door, it is necessary to comprehensively consider the fire resistance, environmental protection, cost and use occasion of the material. At the same time, it should be ensured that the selected material meets the relevant national standards and regulations.