Pneumatic Conveying has decisive advantages in conveying dusty products over mechanical conveying, low space requirements and low maintenance. Also it is flexible in construction, can be easily automated, provides dustless conveying without loss of material and is thus also safe for products hazardous to health. A conveyable product is transported through a pipe by using a certain quality of gas [air or nitrogen]. The product particles are freely moving with the high gas velocity and a low product to air ratio.