How does a pneumatic transport with overpressure work?

These systems are well suited for multiple discharge applications where material is picked up from one point and delivered to different collection bins. Switching from one bin to another is usually accomplished by means of detour valves with multiple ports. Because of their operation, positive pressure systems require feeders that can bring in the material normally stored under atmospheric pressure in a pressurized line. Depending on the mode and the distance to be transported, pressures up to 1,000 kPa may be required for such positive pressure systems. The need for an effective solids supply device capable of withstanding these high pressures is critical to the effective operation of such overpressure systems. If properly designed, transfer systems can be set up to have multiple pick-up points as well.