BUTTERFLY VALVE WITH A FUNCTION FOR SENSING THE OPENING AND CLOSING OF A VALVE DISC, CAPABLE OF ACCURATELY CONFIRMING OPENED OR CLOSED STATES

摘要

PURPOSE: A butterfly valve with a function for sensing the opening and closing of a disc is provided to prevent an accident by accurately confirming an opened state and a closed state of a valve without disassembling the valve.;CONSTITUTION: A butterfly valve with a function for sensing the opening and closing of a disc comprises an operational handle(1), a gear box(2), a connection shaft(5), a valve disc(6), a valve body(4), a permanent magnet(7), and a magnetic sensor(8). The operational handle is operated for opening and closing the valve. The gear box is connected to the operational handle, and transfers torque from the operational handle. The connection shaft transfers the torque from the gear box to the valve disc. The valve disc opens and closes the valve. The valve body fixes the valve disc. The permanent magnet is installed in one end of the valve disc.;COPYRIGHT KIPO 2010