Tap for dosing viscous liquids

A tap for dosing liquids, the tap comprising:

• a body including:
• a connecting part adapted and configured for coupling to a container of liquid to be delivered;
• and
• a liquid delivering passage;
• a stem adapted to open and close the liquid delivering passage;
• and
• an elastic button adapted to actuate the stem in between opening and closing positions;
• means for circulating air inside the tap and the container and replacing liquid upon delivery with air;
• means for dosing liquid adapted to prepare for delivery a pre-arranged dose of liquid, the means for dosing being operatively connected to the liquid delivering passage and the means for circulating air;
• and
• a valve adapted to open and close the liquid delivering passage for the liquid in the means for dosing;
• wherein said means for circulating air and replacing liquid include:
• at least one intermediate tank for air, the at least one intermediate tank directly connected with the means for dosing liquid;
• a venting channel directly connected with the at least one intermediate tank;
• and
• at least one air venting valve that connects the at least one intermediate tank to the container, the at least one air venting valve being received within the venting channel and adapted to open and transfer air from the at least one intermediate tank to the container when the liquid is delivered from the container to the means for dosing.