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Classification of EI fire-proof smoke exhaust ducts, buy reputable EI fire-proof ducts in Hai Phong

1. What is EI fire-proof smoke exhaust duct?

Fire-proof smoke exhaust duct Also known as EI fireproof duct, this is a normal duct but is integrated with fireproof insulation, ensuring full compliance with integrity factors (E) and insulation capacity (I) in the event of a fire for a certain period of time.

The term EI is understood as follows:

E (Integrity): limit of material integrity. At that limit, the structure remains intact without collapsing, cracking, or being geometrically deformed...

I (Thermal Insulation): limit of thermal insulation capacity. The limit at which the material can still maintain its thermal insulation capacity, stabilizing the main structure of the material without being destroyed by temperature.

See also: EI Fire Resistant Duct – High-end solution for ventilation system

 

2. Popular types of EI fireproof ducts on the market

There are 3 types of EI fireproof duct structures that are most commonly used on the market today. We will show you the structure as well as the advantages and disadvantages of each type.

2.1 Duct structure with fireproof paint

This is an old type of EI fire-proof smoke exhaust duct that is quite popular. Regarding the advantages and disadvantages of this type of EI duct, you need to know the following:

Advantage:

  • Consists of only 2 layers: the core metal layer and the outer fireproof paint layer. Therefore, it has a fairly light weight.
  • Simple pipe structure, very easy to construct and install.

Disadvantages:

  • Poor waterproofing.
  • If burned, the paint layer will easily have a burnt smell, making it unpleasant to use.
  • Must be done many times, time consuming, requires high skill.
  • Made from materials that are unsafe for human health. If burned, it will produce toxic smoke that is harmful to the environment.
  • System consistency is not highly guaranteed.
  • High cost.
  • Difficult to get certified

2.2 Fireproof air duct with glass wool structure and protective corrugated iron layer

The structure of this type of EI fireproof smoke exhaust duct includes 3 parts: The inner and outer layers use galvanized iron, and the middle layer is glass wool. This type of duct is produced later and is considered to have more improvements than fireproof ducts with a protective paint layer on the outside.

Advantage

  • Good price, always available in large quantities and very easy to find.
  • Fireproof, waterproof, soundproof and heat-insulating properties are very good.
  • Made from materials safe for the environment and human health.
  • Does not affect the structure of the building because the load only increases on a small component.

Disadvantages

  • Care must be taken in selecting and using raw materials due to the diversity in density.
  • During production, workers must wear protective gear to avoid irritation from fiberglass.

2.3 EI fireproof smoke exhaust duct with insulation cotton and plaster structure

Gypsum fireproof air ducts are mainly used on an industrial and factory scale with the following advantages and disadvantages:

Advantage:

  • Cheap price, various colors.
  • Can be manufactured into many types of pipes with diverse EI standards, meeting almost all projects.
  • Besides fire resistance and good insulation, the pipe has high durability because it is not oxidized or corroded.
  • Raw materials are easy to find, easy to produce, safe for health, and have relatively high compression.

Disadvantages:

  • Cannot be used outdoors because it is not waterproof or water resistant.
  • The pipe is quite heavy so it will be more difficult to construct.
  • During installation, the surface is easily scratched, affecting aesthetics.

3. Address providing reputable fire-proof smoke exhaust ducts in Hai Phong

As one of the experienced units, having cooperated with many large companies and projects. Sao Viet Air Duct We are confident that we can satisfy our customers with high quality, standard EI fireproof duct products.

With 15 years of experience leading the Vietnamese duct industry. Sao Viet Duct constantly strives day and night to produce the highest quality duct products and duct accessories for our customers.

Buy round duct, square duct and other industrial equipment at Sao Viet Air Duct you will get:

– Quick quote – Reasonable

– Work online, offline

- Discuss and find the most suitable solution for you.

– Meet the progress as committed

 

SAO VIET AIR DUCT MANUFACTURING AND TRADING COMPANY LIMITED

Address: 267 Le Thanh Tong, May Chai, Ngo Quyen, Hai Phong

Phone: 02253.555.619

Hotline: Mrs. Hang 0985.239.838, Mrs. Giang: 0934.559.168

Email: dieuhoasaoviet@gmail.com

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