DV-R Return disc air valve, round fresh air valve,  metal air vent valve - Fresh air vent
DV-R Return disc air valve, round fresh air valve, metal air vent valve

The frame & disc are high quality galvanized sheet construction with powder coating of RAL colors.Disc is fixed to the frame by threaded rod.

Product Specification:
  • Place of Origin :

    Guangdong, China (Mainland)

  • Model Number :


  • Type :

    Fresh air system

  • Material :

    Galvanized iron

  • Surface Finish :

    Powder coated

  • Installation :

    Onto the wall or duct

  • OEM Service :


  • Customer's logo :


Product description

disc valve hvac drawing


  • Panel, Cylinder and Disc: High quality galvanized sheet.


  • The frame & disc are high quality galvanized sheet construction with powder coating of RAL colors.
  • Disc is fixed to the frame by threaded rod.
  • Air flow can be adjusted by regulating the cone up and down(+A or -A).
  • Foam gasket is sealed around the back of the frame to avoid the air leakage.
  • Disc valves are best suited to air distribution systems handling relatively low air flow rates within small circular duct work.
    It is recommened for air supplying of small space,exhaust of greasy and damp air in damp areas such as toilets, bathrooms and kitchens.
  • It can be mounted in the wall, ceiling or exposed to air ducts with mounting rings.

Surface Finish:

  • Powder coated color finish as per RAL color----standard color: RAL9016


Item Code

Neck Φ A (mm)

Face Φ B (mm)






















disc valve hvac 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.

disc valve hvac 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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