Q: We have a 250-millimeter-diameter rotary valve, and the nominal capacity indicates that normally we should be able to handle 20 tons of fly ash a day without problems. But in reality we can process no more than 12 tons a day. The system includes a speed inverter to change the velocity and capacity of this valve, but if we increase the speed normally we obtain no additional capacity. Can you help me understand what's happening?
A: The key to a successful rotary valve performance is understanding how the valve works, the details of the specific application, and the parameters that are critical to the valveā€™s operation.