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Ventech vintage air louvers from China for promotion

Ventech vintage air louvers from China for promotion

Back Draught Damper
Guangdong, China (Mainland)
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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.


 Ventech vintage air louvers from China for promotion-1

Ventech vintage air louvers from China for promotion-2

It is a great addition for vintage air louvers to design vintage air louvers. It is able to work under humidity ranging from 10% to 90
Ventech vintage air louvers is designed and manufactured using the best material. The product is certified under CCC, TUV, CE, ROHS, UL, DLC, etc
Ventech vintage air louvers brings together the designer's numerous days and nights of efforts. Going through salt spray test up to hundreds of hours, it is highly resistant to corrosion
Ventech vintage air louvers is high-quality and with an innovative design. The product is quick in turning on and off
The design of vintage air louvers makes Ventech more comprehensive in the vintage air louvers manufacturing industry. This product is constructed with an over current protection function
The product has stable and reliable performance and thus can be used for a long time. The shape of the product will be changed according to the needs of the customers
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