Molla per serranda dell'aria SL 10 - 66 versione precedente per serranda dell'aria

Air damper spring SL 10 - 66 old version is used to return the damper to its original position or create the necessary force during adjustment. This part is suitable for certain burner models that used an earlier version of the mechanism. The spring provides stable force throughout its service life, which is important for the accuracy of the air damper operation. Replacing a worn spring restores correct actuator operation. Recommended for repair and maintenance of burners requiring the old version.