| 摘要 |
The invention relates to a safety and fluid-stopping device fitted to pressurised tanks. According to the invention, a plate 2 mounted on the pressurised tank 4 is pierced concentrically at its centre with orifices 5, onto which are fixed fluid-stopping devices, the said orifices can be covered alternatively by a spherical valve 7 rotating about the spindle 12, itself driven from outside the tank by the spindle 9 and the operating wheel 14, pressure equality between the chamber 15 and the atmosphere or the pressurised enclosure 4 being obtained by a device formed from pipes and valves 16 and 17. <IMAGE> |
