Valve seat for steel bottle containing liquid gas or compressed gas has valve seat resting on movable cylindrical base within the valve seat aperture

摘要

A steel bottle for compressed gas has a rotary valve resting on a valve seat aperture. The valve seat esp. rests on a moving cylindrical base (3) within the valve seat aperture (4). The aperture is opened and closed to gas in liquid or gaseous form by a closed hoop.