This standard specifies the type, basic parameters, main dimensions and technical requirements of glass-lined impeller stirrers for glass-lined mixing vessels. This standard is applicable to lines with nominal pressure less than or equal to 1.0MPa, nominal volume 50L~40000L, design temperature higher than -20℃ to 200℃, nominal stirrer speed 70r/min~125r/min, and the end of the stirrer anchor wing. Glass-lined impeller stirrers are used for glass-lined stirring vessels with speeds less than or equal to 8m/s.