Device for drawing off wine from barrels, has pipe for connecting pump to plunger, and detection unit for detecting closing and opening of gate valve and cooperating with control unit that controls on/off of pump

摘要

The device has a gate valve (2) arranged upstream of a pump (1), and a pipe (6) for connecting the pump to a plunger (9). A detection unit (3) detects closing and opening of the valve and cooperates with a control unit that controls on/off of the pump. The detection unit has a vacuum switch (31) arranged between the valve and pump. A tank is formed as a balloon (51) that is connected to the pipe in its lower part (52), and a non-return valve (10) is arranged between the balloon and pump. The switch is associated with a pressure gauge (33).