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®
                    FAN-PEDIA                                                                                                                                                                                                                           SPARK RESISTANT
                     Published by                                                                    AEROVENT.COM
                       Aerovent                                                                                                                                                                                                                               CONSTRUCTION
                         ©2017
                                                                                                                                                                                                                                                             PRESSURE BLOWERS

                                                                                                                                                                                                                                      AMCA Type C

                                                                                                                      Typical Non Ferrous Materials
                                                                                                                                      -Aluminum                                                   Type  C  offers  a  minimal  level  of  spark  resistance  and  only
                                                                                  2                                       -Aluminum/Nickel/Bronze                                                 requires  that  possible  contact  between  stationary  and  rotating
                                                                                                                                         -Monel                                                   components be reduced. Typically, this construction includes the
                                                                                                                                        -Copper                                                   use  of  an  aluminum  inlet  cone  and  an  aluminum  rub  ring.  The
                                                                                                                                         -Brass                                                   aluminum inlet cone will be the first point of fan wheel contact
                                                                                                                                        -Bronze                                                   if  there  is  a  mechanical  failure.  The  aluminum  rub  ring  placed
                                                                                                                                                                                                  at the opening of the housing where the shaft passes, protects
                                                                                                                                                                                                  against contact of the steel fan shaft and steel fan housing.


                                                                                                                                                                                                                              NON-FERROUS CONSTRUCTION

                                                                                                                                                                                                                                            1 - INLET RUB RING
                                                                                                                                                                                                                                                  2 - RUB STRIP
                                                                                                                                                                                                                                                  3 - RUB RING


                                                                                                                                                                                                                                        STEEL CONSTRUCTION
                                                                                                                                                                                                                                         - HOUSINGS / FRAME
                                                                                                                                                                                 3
                                                                                                                                                                                                                                          - WHEEL / IMPELLER
                                                                                                                                                                                                                                                  - FASTENERS
                                                                  1                                                                                                                                                                                 - PEDESTAL
                                                                                                                                                                                                                                                        - STEEL


                                                                                                                                                                                                                              NOTE #1: BEARINGS NOT ALLOWED
                                                                                                                                                                                                                                                 IN AIRSTREAM

                                                                                                                                                                                                                    NOTE #2: IF FAN HAS A NON FERROUS WHEEL
                              Construction varies by model.
                                                                                                                                                                                                                                      AS STANDARD, USE TYPE B







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