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Ventech fresh air intake louvers from China bulk buy

Ventech fresh air intake louvers from China bulk buy

Back Draught Damper
Guangdong, China (Mainland)
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Enterprise Strength
  • Ventech insists on the service concept to give priority to customer and service. We are dedicated to providing high-quality products and excellent services.
Company Advantages
1. Ventech air duct louvers is manufactured utilizing quality checked material that are obtained from the most trusted vendors of the industry.
2. The quality of this product is highly secured as per the quality requirement of the customers.
3. The product is available in a variety of sizes for a variety of applications.



Back Draught Damper




Ventilation damper the type back draught damper is a non-return damper for extract air. Made of galvanized sheet, for installation into round ducts, to shut the duct automatically when extraction of air stops. Prevent the outside air flow back.




Nominal sizes: 100, 125, 150, 200, 250, 315.

For non-return air control.

Fame made of galvanized sheet 0.8mm, inner shutter made of aluminum 0.3mm.


For installation into round ducts.

Specially designed springs allow accurate control of the shutter.


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Company Features
1. With expanded operations worldwide, Yingde Ventech Air Conditioning Co.,Ltd is moving to a higher and more professional level in manufacturing fresh air intake louvers .
2. By cause of technical processed technology, Ventech is able to provide the best exhaust louvers and vents for customers.
3. Sustainability is at the heart of everything we do. We assess the environmental and social impacts of all of the projects we invest in and work with our clients to achieve good international standards. Ask! With the spirit of 'innovation and progress', we would like to become a strong leader internationally in this field. We will sincerely cooperate with customers and provide quality products with the most competitive prices.
exhaust louvers and vents is one of the factors that Yingde Ventech Air Conditioning Co.,Ltd emphasizes during material selection. SUMWIC machines simultaneously achieve size reduction, high performance and low cost
What Yingde Ventech Air Conditioning Co.,Ltd is utilizing for material of air duct louvers is double checked for quality. Perfect error protection and short circuit starting protection capabilities can be seen on SUMWIC machines
All fresh air intake louvers may be the same, but air duct louvers make us take the lead.Overall reinforcement layer of SUMWIC machines make it able to suit all kinds of harsh environment
It has been proved through industrial tests that air duct louvers has met design requirements. SUMWIC decoilers with extended function are suitable for coils of different sizes
exhaust louvers and vents attracted attention with a particular design, it was regarded a air duct louvers with great expansibility. Most of SUMWIC winding machines feature off-power memory retention
exhaust louvers and vents can stand all kinds of strict tests before putting into use. The latest synchronous winding single-chip microprocessor design is adopted by SUMWIC
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