Valve for repeated ventilation of liquid beverage container e.g. plastic bottle, has base body attached on container material and resting on seal surface of valve body, where base part of base body is equipped with retention device

摘要

The valve has a base body (5) fastened and/or attached on a liquid container material (4) and resting on a seal surface (6) of a valve body (2). A base part of the base body is equipped with a retention device (7) in a bottom portion and formed around a conical implemented thickening part. Opening and closing behaviors of a liquid beverage container is changed based on form and/or size of a seal part and/or position of movement-restrictive structural elements (3). An upper part (1) and/or the base part of the base body and/or the structural elements are connected with each other.