The new DB series of side-channel blowers are suitable for rough industrial processes, such as drying, pneumatic conveying or suction processes, where high flowrates are required. In the blowers, vacuum is created by the kinetic energy of the rotating impeller. The impellers are connected to the motor shaft and enable suction of the pumped medium, which is accelerated in the side channel. Depending on the required vacuum performance, the DB series is available in single-stage and two-stage versions, optionally with one impeller or twin impellers each. The single-stage version releases the pumped medium after it has gone through just one stage, while in the two-stage version it enters the second stage after the first one. Operation with twin impellers increases the blower’s capacity. The two-stage version achieves a higher vacuum level. The combination of both results in larger airflows and higher vacuum level with just one machine. Thanks to the dry, non-contact pumping principle, the exhaust air cannot be contaminated. — Atlas Copco Compressors LLC, Rock Hill, S.C.
A new series of side-channel blowers to handle high flowrates
| By Mary Page Bailey and Gerald Ondrey