This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of P series belt drive reducers (hereinafter referred to as reducers). This standard applies to mixing reducers for kettles in petrochemical, pharmaceutical, light industry, food and sewage treatment, as well as vertical reducers for other purposes.
HG/T 3139.9-2001 history
2002HG/T 3139.9-2001 Vertical reducer for tank series P belt-driving reducer