Coupling adapter for liquefied petroleum gas cylinder, has pusher connected with external control, whose end has notch to determine rest position and work position in which notch closes and opens gas passage conduit, respectively

摘要

The adapter has a valve part (1) across which a conical throat (2) is formed and coupled with a sealing ring of an outlet valve of a cylinder. An intermediate part has a pusher (3) connected with an external control, whose end has a notch (20) to determine rest and work positions in which the notch closes and opens a gas passage conduit (19), respectively. A coupling part has an over flow device (22) and an anti-return system. The over flow device closes the passage in case of abnormal demand of fluid and the anti-return system prevents the return of gas during switch-off.