Valves closing automatically on disconnecting the line and opening on reconnection thereof {having a sealing sleeve around a tubular or solid stem portion of the connector wherein the stem portion is moved for opening and closing the valve, e.g. by translation, rotation}
Valves closing automatically on disconnecting the line and opening on reconnection thereof {having a sealing sleeve around a tubular or solid stem portion of the connector wherein the stem portion is moved for opening and closing the valve, e.g. by translation, rotation}