The latter are designed either by using vacuum in the situation of pneumatic suction conveying, or by implementing overpressure in the case of pneumatic overpressure conveying. In cases of suction, materials are drawn throughout the pipeline and stay away from any contact with the ambient air. When overpressure is in https://automaticbagdumpstations17159.blogolenta.com/28428523/what-does-pneumatic-conveyor-mean