| 摘要 |
The invention relates to a device for actuating double seat valves, which are especially suitable for the food and beverage industry and which have an independently actuated first closing element ( 3 ) and a second closing element ( 4 ) actuated dependently on it, whereby the actuation ( 100, 200 ) always shows via a main adjustment device ( 100 ) for the full open position (H) as well as, for the case of maximum requirements, the respective individual adjustment devices ( 200; 200.1, 200.2 ) which are assigned to the closing elements ( 3, 4 ) for generation of the partially open positions (T 1 , T 2 ) for the seat cleaning of the closing elements ( 3, 4 ). The object of the invention is to design a device according to this generic type, that is constructed as simply as possible and that the first partially open position (T 1 ) of the independently actuated closing element ( 3 ) is adjustable from the outside of the device. This is achieved in that a stop position of the second actuating piston ( 205 ) relative to the housing ( 201/202 ) provided for the first partially open position (T 1 ) of the first closing element ( 3 ) of the individual adjustment device ( 200 ) and is adjustable from its exterior in the area between the main adjustment device ( 100 ) and the individual adjustment devices ( 200 ) through a stop nut ( 214 ).
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