Fan Pressure Range
Fan Pressure Range
(OP)
I am looking for a high pressure/high output fan for a new R&D project. It has been a long time since I have dealt with fans. Many fans that I am coming across are giving a "Static Pressure Range =~ 300 in.wg", but then the spec sheet gives a static pressure of 5 in.wg.
What is the difference between the "Static Pressure Range" and the "Static Pressure"?
Thanks,
What is the difference between the "Static Pressure Range" and the "Static Pressure"?
Thanks,





RE: Fan Pressure Range
Lots of fan manufacturers say maximum static pressure instead of static pressure range.
Static pressure range indicates the manufacturer's statement of the limits of the fan's capabilities. The one you cited above can do 11 psig. That's a big hog. In that size, industrial users call them blowers and sometimes compressors. Your application is high pressure for HVAC, though.
Good on ya,
Goober Dave
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RE: Fan Pressure Range
say, in general, manufacturer state somewhat as a "range" for static pressure at 0 volume flow, and you working point can be something really different, and even fan's mid-range could be very different.
i have always seen that confuses young engineers, but manufacturers have some tradition around that.
this is mostly aligned with what drweig said - your working point is what counts, and you actually cannot see whether some fan can comply without looking at fun curves.
RE: Fan Pressure Range