Canada Blower Co. has introduced lately blowers-in-series high pressure systems to achieve static pressure, previously unachievable by single stage centrifugal blowers.
Series and parallel connected blower installations are often used to meet performance ranges beyond normal single stage blower capacities. For systems that require high ststic pressure, and especially high pressure TOGETHER with high temperature (where standard multi stage, positive displacement, screw, or regenerative type blowers can not be used) series of single stage centrifugal blowers can be used. Many times additional blower in the system can be advantageous. For instance, where two blowers are operating in series and one breaks down, the other may be able to “limp” the system along while the necessary maintenance is performed. Having on blower continue in operation can often allow limited production while the other is being repaired. Also, there are cases where having one blower continue in operation could prevent or at least minimize system or equipment damage from such things as high temperature ot contaminated airstreams.
Another advantage of blowers in series is that of the availbale space. If system must be expanded and increaases the CFM requirements, the allotted space for the original blower may not be large enough for a single large blower, but might be large enough to istall two smaller blowers in series to obtain the necessary pressure.
One potentail advatage for series operation is the likehood of initial cost savings. Although each case must be evaluated individually, it is often more economical to select two “smaller” blowers with their respectice smaller motors and drives than to select one “larger” blower to do the (Read more ...)
