The BRF 125 airtight backflow prevention damper is installed inside the ventilation duct. It effectively prevents undesirable backflow of air.
thyristor speed controller BS 1.8
Used in ventilation systems to switch on/off and regulate the speed of single-phase electric motors in voltage-controlled fans.
Used in ventilation systems to switch on/off and regulate the speed of single-phase electric motors in voltage-controlled fans.
