A DISPENSER TAP WITH TWO STAGE VALVE

摘要

A dispenser for delivering beverages (e.g. beer) including a main body ( 20 ), an inlet ( 21 ), an outlet ( 23 ) and a piston stop valve ( 23 ). In use, the piston moves from a first closed position (A) to a second position (B) where fluid is permitted only through a restricted aperture ( 31 ) provided in a collar ( 27 ) that extends around the piston. The restricted flow path causes turbulence and hence foam formation on the beverage. In a third position (C), flow is completely open from the inlet to the outlet.