The damper is adaptable to all types of circular ducting from 125–200mm diameter. It must be kept easily accessible for maintenance. |
The ducts are fitted directly onto the metal connection pieces, without encroaching on the plastic section of the damper. The assembly is made airtight with sealing compound, adhesive tape, or collars, depending on the type of duct.
Observe the airflow direction indication on the damper. |