BC SERIES SELECTION PROCEDURE
BC series fans can be selected by using performance curves (Chart 2)
Selection procedure is described below:
1) Define volumentric flow rate and realted total pressure difference of a particular application.
2) Define all other characteristics of the fluid that fan will serve.
3) Depending on total pressure difference of this particular application, BC fan series may be selected from Chart 1.
4) Volumentric flow rate and total pressure difference will define the appropriate fan size using performance curves (see performance curve).
A selection example is presented below.
Assume an industrial exhasut duct application, which operates at following conditions:
Volumetric flow rate: 20.000m³/h
Total pressure difference: 2.0000Pa (200mmWG)
Table 1
Order example
Type: BC
Fluid Type: Air
Air Volumetric Flow Rate: 20.000m³/h
Δpt: 2.000Pa (200mmWG)
Air Quality: Slightly dusty
Temperature: 20°C
Configuration Type: F5/ R90/ H
F5: Configuration type
R90: Rotation Direction & Outlet Position
H: Normal or Heavy Construction
According to pressure level, the appropriate series is BC xxx-70E (Chart 1). Given Δpt=200mmWG and 20.000m³/h we select from BC ...70E performance curve the fan size BC 800-70E. The selected fan size BC 800-70E operates at 1400rpm and efficiency within area of interest 0.9x n max. For order request Table 1 should be completed and sent to DYNI.
