North American Blower Impeller Identification
Sheet 2000-20
To order spare impellers, specify:
If blower designation is not available, any or all of the following would help assure your getting the correct impeller(s):
complete blower designation North American shop order (S.O.) number on which it was built impeller material: aluminum, steel, or stainless steel bore size, if known.
casting numbers on blower housings number of impellers in blower number of blades in impeller inside width of impeller at outer periphery inside width of impeller at eye (perpendicular to
If shop order number is not available, please provide as many as possible of the following:
diameter of eye) diameter of eye
blower designation direct drive, coupled, or V-Belt bore size (shaft diameter) diameter of impeller (OD of the flat back of the impeller) motor hp, rpm, voltage, whether TEFC or open.
Note: There may be a shop order (S.O.) number or blower number on the back of the impeller in ink. If so, please specify it.
Inside width of impeller at outer periphery
OD measurement
Diameter of eye
Bore size
Blades (vanes)
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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