| 摘要 |
<p>A controlled flow filling system comprises a storage tank (12), a filling tube (28) having a discharge end (32) and a filling conduit extending between the storage tank and the filling tube. A first, upstream valve (60) comprising a regulator cone having a plurality of generally V-shaped grooves is in series with a second, downstream umbrella valve (30). The first valve is positioned intermediate the storage tank and the discharge end of the filling tube and the second valve is positioned adjacent to the filling tube discharge end.</p> |
