Key Materials & Info

The existing domestic stainless steel ventilators have no difference between good and bad quality, since stainless steel ventilation adopts stainless steel of different material quality. Under normal circumstances, anticorrosion of higher-quality 304/ 2B stainless steel has been uncommon compared with stainless steel of other materials. However, confronted with some badly corrosive and terrible air atmosphere, such as shore workshop, acid washing workshop and so on, it far exceeds its ability. If adopting higher-quality stainless steel with nickel as raw materials of ventilator, its price is too high for most customers. But current common aluminum alloy ventilator has short service life due to the neglecting of anti-corrosion and anti- oxygen.

Metal tech has been leading in the improvement of performance and service life of ventilators. The newly researched TR fluorine carbon polyester coating aluminum alloy ventilators remedy some shortcomings of common stainless steel and aluminum alloy coating ventilators, providing the possibility of ventilator’ s being applied in special trade and circumstance.

The comparison of weight and service life of ventilators made from different materials

Materials Weight of turbine head(kg) Performance Service life Weight of TR ventilator turbine heads
Color coating steel plate 4.0-5.5 Rust easily, distort easily, heavy weight 3-5 years Not produced in TR Co., ltd
Common rustproof aluminum alloy 2.5 Rust easily, distort easily, short service life 2-3 years Not produced in TR Co., ltd
Stainless steel 3.5-5.5 Anti-corrosion, not easy to rust, heavy weight >10 years 3.6 kg
Fluorine carbon polyester coating aluminum alloy 2.2000000000000002 Anti- oxygenation, anticorrosion, light weight > 15 years 2.2 kg
team member

High- quality raw materials

Fluorine carbon polyester coating aluminum alloy roller, the materials from the previous treatment to terminal products are all adopting famous raw materials with good international credit and stable quality.

Raw Materials Countries Famous Brand
Aluminum Base Plate China Southwest Aluminum Industry
Medicine in Previous Treatment German Henkel, Chemetall
Coating materials
(fluorine carbon grater than 70%)
America PPG Co., Ltd
Polyester Sweden Beckers Co., Ltd
Epoxy resin Sweden, Japan Beck Co., Ltd, Libang Co., Ltd

Ventilator Exhaust Calculation and Determination

  1. Determine the indoor volume of the building in cubic meters (length×width×height) = VOL
  2. According to the building type, determine air changes per hour required from the table 1 =N
  3. Determine the standard wind speed according to local weather records (1.2.3.4and 5m/s), thus air exhaust capacity can be reached from table 2 = L p

The number calculation formula of ventilator: n = VOL * N / Lp


Table 1: Air changes of different types (N)

Air Changes of Different Types ( N )
Building Type Air Exhaust times/ hour Building Type Air Exhausting times/ hour
Storehouses 3-May Coking Factories 6-Dec
Common Factories & Workshops 3-Aug Washing Rooms Jul-15
Gyms, Tennis Houses 3-Aug Generating Stations, Converting Stations Aug-20
Assembly Halls 6-Dec Boiler Rooms Dec-30
Garages 6-Dec Electric welding Workshops Dec-21
Paper Mills Aug-15 Food Factories Dec-22
Electroplating Workshops Oct-15 Plating Workshops 16-30
Acid-washing Workshops Nov-18 Lampblack Workshop 16-30