| 摘要 |
An apparatus for filling a container with a liquid to a predetermined weight which utilizes a scale which generates a control signal which is based on the weight of liquid within the container, a control valve such as a ball valve having a valve element which permits a selectively variable flow rate through the valve, an actuator which is operatively connected to the control valve to vary the position of the valve element and thereby vary the flow rate, a valve positioner to control the operation of the actuator/valve in response to a calculated positioning signal which is related to the control signal and which is generated by an interface arrangement operatively connected to the scale and the positioner. The apparatus further includes a conduit assembly for introducing liquid into the container, the filling assembly including a generally hook-shaped filling lance which is pivotally mounted for rotation about a generally horizontal axis and which can be moved to a liquid discharge position wherein liquid discharged therefrom is directed generally downwardly thereby permitting the filling of foaming liquids without the necessity for subsurface filling. There is also included a fume disposal assembly and a drip collection assembly for the lance being contained within the fume disposal assembly, the drip collection assembly serving to catch any drops of liquid from the lance.
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