Abstract: An emptying valve for emptying liquid packages such as sealed liquid pouches, said emptying valve being detachably attachable to the sealed liquid pouch, and said emptying valve having an essentially tubular, mainly hollow and at least one end open body piece, whose that end which is to be attached to the liquid pouch is provided at its distal end with a sharply pointed, liquid pouch wall (13) piercing, at least partially conical tip part (2, 4) having liquid-conducting holes (12) made to its wall, whereby the holes communicate with the hollow interior of said tubular body piece, and at least immediately after the tip part (2, 4) the diameter of the tubular body piece (1) being provided with an outer thread after the tip part (2, 4), whereby a tightening element 97) with a mating inner thread can be rotated thereon so as to tighten the element against the collar.