| 摘要 |
<p>A diffuser valve adapted to be fixed in the wall (9) of a storage hopper containing particulate materials and operable to dispense an air blast into the interiors of the hopper to loosen material in the region of the valve. The valve has a tubular body (1) accommodating a valve member (2) which opens to dispense the air blast in a radial direction along the walls (9) of the hopper to which it is fixed. </p> |
