Self-closing valve has annular groove in valve body into which sealing ring fits, shoulder with triangular cross-section above groove partially overlapping ring and lower side of shoulder and ring resting against inner surface of valve seat

摘要

The self-closing valve has an annular groove (200) in the valve body into which a sealing ring (3) fits. A shoulder (21) with a triangular cross-section above the groove partially overlaps the ring. The lower side of the shoulder and the ring rest against a conical inner surface (1) on the valve seat.