EI Fireproof ducts – Material: concrete

EI concrete material fireproof duct is a product that creates a ventilation, air conditioning, pressure boosting, smoke extraction system with high safety and health protection for users. Although quite popular, however, not everyone understands this product well. Follow the article of P69 Mechanical Factory to understand more!

EI Fireproof ducts – Material: concrete

– EI Fireproof ducts – Material: concrete also has the same structure as conventional ducts, but the product is covered with protective outer layers of concrete. These protective layers are what make Ei ductwork able to withstand high temperatures according to the standards Ei 30, Ei 45, Ei 60, Ei 90, Ei 120.

– E (Integrity) is the limit level at which the material structure is perfectly maintained without breaking, falling, etc., regardless of the heat transfer capacity of the material. This limit is usually determined for application in fireproof solutions such as manufacturing partitions, walls, ventilation systems, etc.

– I (Thermal Insulation) is the limit at which the material retains stable thermal insulation ability. The main structure of the material is not damaged by heat. Determine this limit to apply to fireproof solutions, ensuring when a fire occurs, the materials are kept intact, the fire cannot spread, the temperature at the surfaces of the materials is guaranteed. tell.

Structure of EI Fireproof ducts – Material: concrete

The product has high safety and fire resistance due to the following 4 layers:

– The first layer: Galvanized corrugated iron layer, minimum thickness of 0.75mm or more

– The second layer: Primer layer (Surface treatment paint, zinc …) to create roughness to increase adhesion, bonding between layers of materials with the corrugated iron surface. Reinforced wire mesh layer helps to bond between layers of materials and is more durable

– 3rd layer: Central insulation fireproof layer

– 4th layer: Fireproof paint layer

Norms of EI concrete material fireproof ducts

No.	I ( Insulation )	Layer	Type	Construction Norm (kg/m^2)	DPT	Number of layers	Dry time ( 30 Celsius Degree)
							Min	Max
1	30 – 60	1st	Sơn lót	0,2	50 micron	1	2h	Free
		2nd	Chống cháy cách nhiệt	3,5	0,7 cm	1	48-72d	Free
		3rd	Sơn chống cháy	0,98	150 µm	1	24h	Free
2	90	1st	Sơn lót	0,2	50 micron	1	2h	Free
		2nd	Chống cháy cách nhiệt	6	1,2 cm	1	48-72d	Free
		3rd	Sơn chống cháy	0,98	150 µm	1	24h	Free
3	120	1st	Sơn lót	0,2	50 micron	1	2h	Free
		2nd	Chống cháy cách nhiệt	7,5	1,5 cm	1	48-72d	Free
		3rd	Sơn chống cháy	0,98	150 µm	1	24h	Free

Construction conditions for EI ductwork

To achieve maximum efficiency, contractors need to pay attention to the following conditions

1. About basic requirements

– The surface of the material must be cleaned of grease and dirt

– Should be applied with a temperature above 10 degrees Celsius, air humidity below 85 degrees Celsius, no rain, splashing standing water on the surface

2. Thickness required protective layers

– The total thickness of the constructions must be according to the norm and meet the selected fire resistance standard

3. Dry time

– The lower the temperature, the longer the drying time

The higher the humidity, the longer the drying time

– Paint will dry faster when in a well-ventilated place

– Thickness will also affect the quick and slow drying time of the product

Where to buy quality EI concrete material fireproof ducts

Currently, in the market, P69 Mechanical Factory is a standard manufacturer of EI concrete material fireproof ducts, so this is considered a name chosen by many customers when shopping for products. With the following outstanding advantages:

– Competitive price

– Fast, modern production line

– Professional and flexible sales staffs

– Product warranty policy from 12-36 months

Products are diverse in size and design, helping customers choose cheap but quality EI concrete material fireproof ducts. If you have any questions, you can directly contact Hotline: 0989 188 982 for answers!

P69 Mechanical Factory Contact information

Address: Km 18, Thang Long Boulevard, Thach That Quoc Oai Industrial Area, Hanoi

Headquarters: No. 06/165C, Xuan Thuy, Cau Giay, Hanoi

Telephone: 09666 86 969

Hotline: 0989 188 982

Email: kd1@cokhip69.com.vn

Linkedin: https://www.linkedin.com/in/nhamaycokhip69/

Website: https://cokhip69.com.vn/

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