Duct backdraught shutters BDA

Duct backdraught shutters BDA

Categories:
Duct backdraught shutters

BDA

Size Φd(mm) H(mm) t(mm)
80 97 88 0.5
100 99 88 0.5
125 124 88 0.5
150 148.9 88 0.5
160 158.9 88 0.5
200 198.9 88 0.5
250 248.9 128 0.5
315 313.8 128 0.5
355 353.8 97.5 0.5
400 398.8 97.5 0.5
450 448.8 122.5 0.5
500 498.8 122.5 0.5
560 558.8 122.5 0.5
630 628.8 122.5 0.5
 
Galvanized steel circular backdraught shutters with aluminium blades for mounting in between 2 ducts
Application
For airflow control in ventilation systems
The aluminium blades will open when blades are exposed to overpressure and will shut again when pressure falls away thanks to a stainless steel mechanical spring
Temperature usage up to 50°C
Material
Galvanized steel and aluminium
Composition
Body made of galvanized steel
Blades made of aluminium

Galvanized natural finish
Mounting
It is recommended to install the shutter into horizontal ducting
Shutter spindle should be vertical
The shutter is installed into piping by simple slide-invvvvvvvvvvvvvvvvv
The backdraught shutters for round ducts shall be of the type
with galvanized steel body and aluminium blades. They will be
mounted in between two ducts to prevent backdraught when the
fan stops.

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