Rosette valve for automatic closure of pliable plastic bottles

摘要

The rosette valve structure has a valve section with outer axial and star-shaped ribs (6). A clamping collar (5) is fitted from the outside, inwards. The radial height of the ribs (6) at least equals the inner radius of the valve tube (4) when originally shaped. The rosette valve structure has a valve section with outer axial and star-shaped ribs (6). A clamping collar (5) is fitted from the outside, inwards. The radial height of the ribs (6) at least equals the inner radius of the valve tube (4) when originally shaped. When the valve section is pushed into place with the inner ribs, the side walls and outer edges of the ribs take up the shape of a sealed rosette (8) against the liquid, under spring tension.