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Ventech round louver manufacturer for promotion

Ventech round louver manufacturer 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 round louver manufacturer for promotion-1

Ventech round louver manufacturer for promotion-2

Being more elegant in round louver makes round louver more attractive in this field. Its interface is designed to be simple and elegant
Compared with original design, round louver has such features of round louver. With the protection of linear screw & guide way, it enjoys a high level of safety
round louver's service life is improved than common round louver. The product is produced with a superior dynamic function
We can meet you any material requirements for round louver, no matter plastic material , wooden material or other material.
The design of round louver always conveys round louver concept.
This product is strictly controlled by professional quality check team to avoid any flaws. Under the extreme weather, the machine can operate normally
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