Abstract: A device for metering and dispensing liquid or semiliquid mediums, such as adhesives, paints, lacquers, oils, and anaerobic plastics, comprising a tube having a discharge port and a first valve seat with a conical taper thereto inside of the tube adjacent the discharge port, and a valve body slidable within the tube between open and closed positions with the first valve seat. The valve body has a conical tapered end portion which complements the conical taper of the first valve seat of the tube. At least one spring normally biases the valve body to closed position against the first valve seat and a tip is formed on the end of the valve body which extends through the discharge port of the tube and closes it when the valve body is in closed position against the first valve seat. A cylindrical inner wall of the tube connects with the conical taper of the first valve seat and further extends to form a flared storage chamber at the end thereof.