| 摘要 |
A valve assembly for a filling machine, the valve assembly comprising a valve body (2, fig 1) comprising at least one valve (3A, fig 1), the or each valve comprising a valve controller (4A, fig 1) for selectively opening and closing one or more flow channels 5 within the or each valve. The valve controller comprises (i) a shaft (7, 5A) positionable through a shaft channel (8, fig 6A) in the valve body; (ii) an actuator (9, Fig 3) provided at a first end of the shaft and positionable at a first side of the valve body; and (iii) a cover 11 provided at the second end of the shaft and positionable at a second side of the valve body. The shaft is (a) moveable along its longitudinal axis under the action of the actuator to move the cover into abutment with the second side 13 of the valve body, and (b) rotatable about its longitudinal axis under the action of the actuator to move the cover between first and second positions, said first position allowing the flow of fluid and/or solid through a flow channel in the valve body, said second position preventing the flow of fluid and/or solid through said flow channel in the valve body. Also described is a valve controller, a cover and a filling machine. |
