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 (T1, T2) 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 (T1) 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 (T1) 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).