| 摘要 |
<p>The invention relates to a pin index bottle valve for pressure gas bottles, especially for medical use, wherein an upper spindle that is linked with a handwheel is slidingly received in a center opening of a cap screw. The aim of the invention is to reduce the moment of actuation of the handwheel that is proportional to the initial gas pressure so that the handwheel can be more easily actuated even if gas is withdrawn from full pressure gas bottles. To this end, the upper spindle (5) that is linked with the handwheel (13) is received in the center opening of the cap screw (11) by means of a rolling bearing.</p> |
