Couplings and Back draft shutters

Female Coupling ⌀ 160mm. The coupling is used for connecting:

• a filter to a fan
• a flange to a reducer
• a fan to a reducer 

Male Coupling ⌀ 200mm. The coupling is used for connecting two separate air ducts.

Female Coupling ⌀ 200mm. The coupling is used for connecting:

• a filter to a fan
• a flange to a reducer
• a fan to a reducer 

The Ducting Back Draft Shutter is an automatic mechanism designed to connect 2 separate air ducts in the construction of ventilation systems. It is equipped with metal wings that deflect when the air is in one direction and close as the air is drawn back. When there is no air, the wings are left closed with a spring.

• connects 2 separate air ducts
• prevent the return of treated air back into the room
• size: ⌀ 200mm

Male Coupling ⌀ 250mm. The coupling is used for connecting two separate air ducts.

Female Coupling ⌀ 250mm. The coupling is used for connecting:

• a filter to a fan
• a flange to a reducer
• a fan to a reducer 

The Ducting Back Draft Shutter is an automatic mechanism designed to connect 2 separate air ducts in the construction of ventilation systems. It is equipped with metal wings that deflect when the air is in one direction and close as the air is drawn back. When there is no air, the wings are left closed with a spring.

• connects 2 separate air ducts
• prevent the return of treated air back into the room
• size: ⌀ 250mm

Male Coupling ⌀ 300mm. The coupling is used for connecting two separate air ducts.

Female Coupling ⌀ 300mm. The coupling is used for connecting:

• a filter to a fan
• a flange to a reducer
• a fan to a reducer 

Male Coupling ⌀ 315mm. The coupling is used for connecting two separate air ducts.

Female Coupling ⌀ 315mm. The coupling is used for connecting:

• a filter to a fan
• a flange to a reducer
• a fan to a reducer 

The Ducting Back Draft Shutter is an automatic mechanism designed to connect 2 separate air ducts in the construction of ventilation systems. It is equipped with metal wings that deflect when the air is in one direction and close as the air is drawn back. When there is no air, the wings are left closed with a spring.

• connects 2 separate air ducts
• prevent the return of treated air back into the room
• size: ⌀ 315mm