| 摘要 |
PURPOSE:To prevent thoroughly the leakage of a flux by providing a stop valve for the flux at the intermediate of a conduit communicating a hopper and a spray nozzle, and providing an edge piece at the peripheral edge part of the valve disc of said valve. CONSTITUTION:A conduit 10 connecting to a hopper penetrated at the upper part of a stop valve 12 for a flux and a conduit 10' conducting the flux to a spray nozzle is mounted at the lower part of the same. A valve disc 13 is freely turnably attached to the part near the top end of the conduit 10 in the body of the valve 12. The disc 13 is formed to a cup shape with an edge piece 15 which is larger in diameter than the outside diameter of the conduit 10 and of which the peripheral edge is bent upward or is erected to form a tray. The granular flux falling from the conduit 10 is thus filled in the disc 13 and the state of the continuing leakage of the flux is prevented. |
