FL-AR aluminum waterproof louver, round waterproof louver, fresh waterproof louver, air louver supplier in China - Fresh air vent
FL-AR aluminum waterproof louver, round waterproof louver, fresh waterproof louver, air louver supplier in China

Fresh air louver is composed of a frame and horizontal blade assembly, manufactured from high-quality extruded aluminum profiled construction with advantages of corrosion resistance and rigidity.

Product Specification:
  • Place of Origin :

    Guangdong, China (Mainland)

  • Model Number :


  • Type :

    HVAC Systems

  • Material :

    Extruded Aluminum Alloy (Minimum 1.0mm Thickness)

  • Surface Finish :

    Powder coated / Anodized

  • Standard Color :


  • OEM Service :


  • Customer's logo :


Product descriptionround air louver drawing


  • Frame: High quality extruded aluminum alloy(A6063) profile with 30mm flange as standard.
  • Blades: Aerofoil blades in 45° from aluminum profile
  • Blades spacing: 35mm as standard
  • Support pipe: 8mm diameter aluminum pipe
  • Round shaped


  • Fresh air louver is composed of frame and horizontal blades assembly, manufactured from high quality extruded
    aluminum profiled construction with advantages of corrosion resistance and rigidity.
  • Blades are set at angle of 45°with 30mm spacing, and fixed to the inner frame by rivets and support pipe.
  • Total structure is weather proofed and blades are inclined down wards to protect against rain water.
  • Structure provides around 45% effective pressure area .

Surface Finish:

  • Powder coated color finish as per RAL color----standard color: RAL9016, 9010
  • Natural anodized aluminum finish

Material thickness:

  • Standard is 1.0mm


  • Any size available
  • Overall face size = Neck size +60mm
  • Standard size

Item code Neck Size(mm) Face Size(mm) High(mm)
FL-AR-100 95 155 51
FL-AR-150 145 205 51
FL-AR-200 195 255 51
FL-AR-250 245 305 51
FL-AR-300 295 355 51

round air louver application

Our companyFoshan Vairtech Ventilation Co., Ltd. is a professional manufacturer of hvac ventilation products with more than 

20 years experience. Vairtech is one of the leading brands in China now.

Our company is located in the aluminum hometown of China - Nanhai, Foshan, Guangdong, which enjoys the 

transportation and raw material convenience.

Vairtech air grilles diffusers showroom

To meet the new age of globalization, we accelerate the pace of development to produce more new products and 

provide better service to our customers. We are sincerely welcome you to contact us for business.

Vairtech company

Production process

Vairtech have a rigorous process management system,implement the principle of typical process rules, standardization 

and generalization of process equipment, and require process personnel to adhere to a scientific attitude, constantly 

improve their technological level, and serve for production.

Vairtech production process



2014 we visited Dubai market & our partners

2015 we attended Shanghai HVAC&R Exhibition

2016 we attended Beijing HVAC&R Exhibition and visited Philippine market & our partners

2017 we attended Shanghai HVAC&R Exhibition

2018 we attended Beijing HVAC&R Exhibition and HO CHI MINH HVAC&R Exhibition

2019 we attended Shanghai HVAC&R Exhibition and Bangkok HVAC&R Exhibition

2020 we attended AHR2020 in Orlando, USA Exhibition,we visited American market & our partners

From 2023, we will participate in more exhibitions. Welcome to your visit.

Vairtech exhibition


We are engaged in R&D of our products, air diffusers, air grilles, air vents, air dampers, flexible ducts, access panels 

and so on. Now, our products are well sold to more than 150 countries with praise for the great structures, various 

style, nice appearance and high quality.

Vairtech customers feedback

PackingPacking ways:

1. Inner pvc individual packing.                                             

2. Outer strong carton packing. 

3. Extra pallet & wooden box for optional.                         

4. Special packing method is available if needed.

round air louver packaging


Q1: Why choose you?

A: We are focus on producing ventilation products of air grilles & diffusers in hvac systems for more than 20 years 

and we have a variety of project experience, according to the requirements of different customers to provide the 

most appropriate solutions.

Q2: Can you customize in different colors and sizes?

Different colors can be sprayed according to the color card, generally sprayed white, the size can be customized.

Q3: Can I place a sample order to see the quality of the product?

A: Our sample can be given to you for free, you only need to pay the freight. Telling us the sample size you need, 

and we will check the freight for you.

Q4: I don't know how to use the product after I get it?
Please contact us, we have online technical support,will tell you how to use or install it,don't worry about that.

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