Hinge-type VentilatorsUse of Housing
Automatic open & close ventilation unit
The butterfly hinge type ventilation unit alters opening angles of the butterfly hinge under the preset temperature ranges. The lift length (sliding length of the piston) is designed based on the maximum (or mimimum) opening angle against certain preset temperature. The mechanism of this unit into operation is that the thermoelement detects ambient temperatures, then operates the piston to move the plate of butterfly hinge.
example
A reversible operation of above opening and closing is possible by alteration of the mechanism.
Application：automatic opening & closing of doors.lids or covers etc.