1 Subject Contents and Applicable Scope
This standard specifies the technical requirements, test methods, inspection rules, warranty period, marking, packing and transportation of general purposes centrifugal fans (hereinafter referred to as "fan").
This standard is applicable to centrifugal fans used in ventilation system, air conditioning and industrial production. Its transmission medium is air or gas mixture of air and other non-corrosive gases with a maximum total pressure not greater than 14.7kPa. The inlet temperature of the medium shall not be greater than 80℃, the dust content and other solid impurities content shall not be greater than 100mg/m3, the medium shall be free from viscous and fibrous matters.
2 Normative References
GB/T 275 Shaft and Housing Fits for Rolling Bearings
GB 1171 V Belts
GB 1236 Method for Testing Air Performance of Fans
GB 2888 Methods of Noise Measurement for Fans, Blowers Compressors and Roots Blowers
GB 3181 Color Standard Sample for Paint Film
GB 3235 Basic Types Sizes Parameters and Characteristics Curve of Fans
GB 4323 Pin Coupling with Elastic Sleeve
GB 10178 Site Testing of Fans
ZB J72 038 Fan Welding Inspection
ZB J72 039 Specification of Riveting and Welding Part for Fans
ZB J72 042 Fan Rotor Balance
JB 8 Manufacturer's Plate
3 Technical Requirements
1 Subject Contents and Applicable Scope
2 Normative References
3 Technical Requirements
4 Test Methods
5 Inspection Rules
6 Warranty Period
7 Marking, Packaging, and Transportation
Additional Information:
