خدمة ما بعد البيع
على الانترنت الدعم الفني
مكان المنشأ
Zhejiang, China
اسم العلامة التجارية
ZENGO
رقم الموديل
back draught damper
Type
Volume Control Round Fire Damper
Material
The casing use galvanized steel, the blades are made of aluminium
Surface finish
Galvanization
Contruction
With a inner foam seal for better tightness and noise reducti.
Use
Preventing the reverse of air-flow in circular duct systems.
working principle
Damper will open when blades are exposed to over pressure
Installation
Shall be installed to prevent back draught when the fan stops.
Keyword
back draught damper