GY4-73 Boiler Fan performance GY4-73 boiler centrifugal-Fan is suitable for power plant 2 ~ 670T / h steam boiler pass, induced draft fan systems. In no other special requirements, GY4-73 also be used for mine ventilation and general ventilation. Fan conveying medium is air, the maximum temperature does not exceed 80oC, medium induced draft fan for transporting gas, the maximum temperature not exceeding 250oC. Before the induced draft fan should be installed in addition to equipment, the plant according to the general usage, dust removal efficiency of not less than 85%.