Abstract: A dust collector diaphragm valve capable of performing manual emergency operation according to the present invention is configured to perform control so that the internal equal pressure of the diaphragm valve can be broken due to an internal pressure drop attributable to an instantaneous air discharge occurring whenever an emergency operation switch is manually pressed when a pulse operation signal or solenoid valve used to operate the diaphragm valve fails, and thus a rubber plate installed between the body and cover of the diaphragm valve can be turned (moved forward) after being instantaneously moved backward. Accordingly, dedusting work can be manually performed according to the determination of a manager, and thus the dust collector diaphragm valve can prevent an emergency shutdown during the operation of a dust collector and can also prevent a filter from reaching a limit differential pressure, thereby preventing the lifespan of the filter from being shortened.

Abstract: A dust collector diaphragm valve capable of performing manual emergency operation according to the present invention is configured to perform control so that the internal equal pressure of the diaphragm valve can be broken due to an internal pressure drop attributable to an instantaneous air discharge occurring whenever an emergency operation switch is manually pressed when a pulse operation signal or solenoid valve used to operate the diaphragm valve fails, and thus a rubber plate installed between the body and cover of the diaphragm valve can be turned (moved forward) after being instantaneously moved backward. Accordingly, dedusting work can be manually performed according to the determination of a manager, and thus the dust collector diaphragm valve can prevent an emergency shutdown during the operation of a dust collector and can also prevent a filter from reaching a limit differential pressure, thereby preventing the lifespan of the filter from being shortened.