DDG-A2 Double Deflection Air grille,olive leaf grille , supply double defletion grille for side wall - Aluminum air diffuser & grille
DDG-A2 Double Deflection Air grille,olive leaf grille , supply double defletion grille for side wall

Grilles have two sets parallel blades, DG-AV: vertical on the front and the horizontal at the rear, DG-AH: horizontal on the front and the vertical at the rear

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 description

DDG-A2 drawing


  • Frame: High quality extruded aluminum alloy(A6063) profile with 30mm flange
  • Blade: Olive leaf blades from aluminum profile
  • Blade spacing: 20mm as standard


  • The frame & blades are high quality extruded aluminum profiled construction with advantages of corrosion resistance and rigidity.
  • The grille is consist of out frame and inner core, the core is fixed to the frame with steel spring pins. 
  • The Core can be easily removable and interchangeable to allow for maximum flexibility in the installation, maintenance and damper adjustment.
  • Grilles have two sets parrallet blades, DG-AV: vertical on the front and the horizontal at the rear, DG-AH: horizontal on the front and the vertical at the rear.
  • Blades can be adjusted mannually and individually to provide air deflection in both horizontal and vertical planes.
  • Maximum affective pressure areas can be achieved when the blades are positioned at 0 degree.


  • Surface Finish: Powder coated color finish as per RAL color----standard color: RAL9016, 9010, Natural anodized aluminum finish
  • Material thickness: 0.8mm, 1.0mm, 1.2mm for option
  • Accessory: OBD, Neck adaptor


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

Standard size:

     W×H       mm×mm









150×150 300×200 400×150 500×150 650×100
200×100 300×250 400×200 500×200 700×250
200×125 300×300 400×250 500×250 750×100
200×150 350×125 400×300 500×300 750×150
250×100 350×150 400×400 500×350 750×200
250×125 350×200 450×100 500×400 750×250
250×150 350×250 450×150 600×125 900×150
250×200 350×300 450×200 600×150 900×200
250×250 350×350 450×450 600×200 1000×200
300×100 400×100 500×100 600×250 1200×150
300×125 400×125 500×125 600×300  

Double deflection air grille application

Our company

Foshan 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


Packing 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.

Double deflection air grille packing


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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