Direct Drive
Selections
Direct drive construction offers many advantages for commercial or industrial air handling applications.
-Reduced maintenance (no belts and shaft bearings to service)
-Compact housing design requires a smaller footprint
-Low vibration
-Suitable for clean air application (no belt or bearing residue in airstream)
Flow Control Options
%JSFDUESJWFNPEFMTSFRVJSFBWBSJBCMFGSFRVFODZESJWF 7'% PSBQBSUJBM width wheel to assist in matching actual fan performance to the desired QPJOUPGPQFSBUJPO"7'%BMMPXTUIFGBOQFSGPSNBODFUPCFBEKVTUFEUP assist in system balancing and provides flexibility in adapting to future TZTUFNDIBOHFT7'%TJODPOKVODUJPOXJUIB2&.PS2&1DBOBTTJTUJO reducing energy consumption. Partial wheel widths can also be used to attain a specific fan performance. Partial wheel widths are available in
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The charts on these pages allow for a quick estimation of the required fan size and motor speed to achieve the desired point of operation. Colored bands for a given size in each chart show the acceptable performance range for the most commonly selected fan sizes at a given motor speed. For detailed selection information, please consult our Computer Aided Product Selection (CAPS) software.
QEP Arrangement 4
Horizontal, Direct Drive
QEM Arrangement 4
Horizontal, Direct Drive
1425 RPM
(50 Hz)
Model QEM 4J[FT
4
3
Static
Pressure 2
(in. wg)
1
Model QEP
4J[FT | 0 | 15 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 40 |
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1 |
| 5 |
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| 10 |
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| 50 | 100 | ||
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950RPM
(50 Hz)
Model QEM 4J[FT
Model QEP
4J[FT
7PMVNF DGNY
4
3
Static
Pressure 2
(in. wg)
1
0 | 15 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 40 | 44 | 49 | 54 | 60 |
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| 1 |
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| 5 |
| 10 |
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| 50 |
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| 100 |
7PMVNF DGNY
12 | Direct Drive models are not licensed to bear the AMCA Seal |