| 摘要 |
<p>The system fills with a gas receiver accommodating fluid or paste under pressure and dispensing it. the receiver comprises a rigid cylindrical outer vessel with a cover acting as valve mounting, together with an elastic inner vessel and a discharge valve in the cover. The inner vessel edge is clamped between the cover and the vessel neck and secured by an expander tool, after which gas is delivered into the space between inner and outer vessel. After filling the inner vessel, this is lifted so as to form an annular gap (22) between it and the edge (14) of the outer vessel (12). Gas is delivered into the space between the vessels through this gap, after which the inner vessel is lowered and its neck (20) clamped between the edge of the cover and the outer vessel.</p> |
