HVAC Gi Back Draught Damper One Way Shutter

• Usage: Connetor
• Material: Galvanized Steel
• Transport Package: Carton
• Specification: BDA
• Trademark: Refcenter
• Origin: China
• Model NO.: BDA
• Production Capacity: 50000 Pieces/Month

Product Description

HVAC Air Damper Galvanized Steel Shutter Back Draught Damper 

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

Colour :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-in

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.

 

Size	φd(mm)	H(mm)	t(mm)
80	79	78	0.5
100	99	78	0.5
125	124	78	0.5
150	148.9	78	0.5
160	158.9	78	0.5
200	198.9	78	0.5
250	248.9	118	0.5
315	313.8	118	0.5