NYB Class 4 Fans extend the performance of Single-Width Fans to the higher pressure ranges required by some industrial-process applications. The Class 4 features AcoustaFoil® wheels for highly efficient handling of clean and dry gas streams and PLR-wheels for moist or mildly contaminated gas streams.
|Wheel Design:||Backward Inclined-Airfoil
Backward Inclined-Single Thickness
Backward Inclined-Airfoil: Aerodynamic airfoil-blade is the most efficient design with the lowest sound levels for clear air applications.
Backward Inclined-Single Thickness: Flat, single-thickness blade surface best suited for airstreams with light material.
VOLUME - to 170,000 CFM (288,800 m3/hr)
PRESSURES - to 20" WG (4,980 Pa)
TEMPERATURES - to 750°F (400°C)
14 SIZES - 18"-73" (457mm-1,855mm)
ARRANGEMENTS - 1,3,7, 8
AMCA Class 4
|Available Materials of Construction:||
|Product Bulletin:||Backward Inclined Centrifugal Class IV Fans (161) SWSI Fans, Size 80 and 89 (CS-137)|
|Guide Specifications:||Specifying Class 4 Fans with AcoustaFoil Wheels (GS-161) Specifying Class 4 Fans with PLR Wheels (GS-162)|
|Engineering Supplements:||Direct Drive - Class 4 Backwardly Inclined Fans (ES-163)|
|Installation, Operation & Maintenance Manual:||IM-100|