For generating under-pressure in pneumatic vacuum conveying systems used for conveying of bulk materials in continuous operation. Large-dimension filters in the preceding receiver or secondary filter, which are automatically cleaned with compressed air, prevent dust from entering the vacuum blower.
Vacuum blowers of the S50 series ... ring blowers operate according to the side-channel principle. The air flows through the compressor on a helical path and, depending on the required operating point, is accelerated and consequently compressed several times. Thus higher pressures are often reached than is possible when using radial blowers with the same blower wheel diameter and the same speed. The maximum temperature of the conveying medium and the ambient temperature is 40° C.