G4-68, Y4-68 centrifugal pass, Fan 1. Purpose: G4-68, Y4-68 centrifugal pass, Fan suitable for power plant 230t / h steam boiler at the pass, the wind facilities. In no other special requirements, G4-68 type can be used for mine ventilation and general ventilation. Fan transmission medium is air, the maximum temperature does not exceed 80 ℃; media induced draft fan for conveying gas, the maximum temperature should not exceed 250 ℃. Before the induced draft fan, dust removal must be installed no less than 85% of the dust removal device to reduce the dust content of flue gas into the fan in order to improve the life of the fan. 2, in the form of: (1) fan and induced draft fan are made of a single inhalation, each with a total of seven machines No8-16 number. (2) Each fan can be made in two forms rotate right, face the fan from the motor end, the impeller rotates clockwise called right-hand fan to the right, said impeller rotating counterclockwise Chan L-blower to the left indicate . Exit position (3) fan outlet angle to the cabinet to be represented, right, left fans can be made of 0 °, 45 °, 90 °, 135 °, 180 °, 225 ° total of six kinds of angles. (4) Fan drive way D-type, motor and fan coupled with flexible coupling Direct drive. (5) the full product name, for example as follows: GY4-68No8D right 90 °, where G, Y, respectively, boilers, ventilation and boiler Blower