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Ventech air intake louver best supplier for sale

Ventech air intake louver best supplier for sale

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 air intake louver best supplier for sale-1

Ventech air intake louver best supplier for sale-2

air intake louver is one of the factors that Yingde Ventech Air Conditioning Co.,Ltd emphasizes during material selection. All SUMWIC machines have low noise level
What Yingde Ventech Air Conditioning Co.,Ltd is utilizing for material of air intake louver is double checked for quality. Most of SUMWIC winding machines has vernier caliper functions
All air intake louver may be the same, but air intake louver make us take the lead.Most of SUMWIC winding machines feature off-power memory retention
It has been proved through industrial tests that air intake louver has met design requirements. As super elevated wisdom model, SUMWIC winding machine has self-inspecting functions
air intake louver attracted attention with a particular design, it was regarded a air intake louver with great expansibility. SUMWIC winding machine can adjust the winding speed automatically to the most steady state
air intake louver can stand all kinds of strict tests before putting into use. SUMWIC winding machine features strong anti-interference ability
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