This product is used in the fuel burner of Riello/Riyadh Road brand in Italy.
Installed on the oil distributor. Controlled by two solenoid valves on the distributor.
The function is to open the small fire damper, the fire damper and the closed position respectively. The product has two locking nuts for secondary adjustment.
Applicable models: RL28, RL34, RL38, RL44, RL50, RL70, RL100, RL130, RL190, RL250