| 摘要 |
<p>Powder coating apparatus suitable for electrostatic powder coating apparatus is provided. The powder coating apparatus has a venturi type powder pump (42) for pumping from a powder container. Manually adjustable valve means (30, 31), such as needle valves, provides relatively coarse adjustments of the air supply within normal operating limits to the venturi type powder pump. Valve means (32) also adjusts the fluidizing air supply to the container from which powder is pumped.</p> |
