The pumping speed of HG-30 diaphragm Vacuumpump is 30L/min, the ultimate pressure (Mpa) is > 0.085 (150mbar), and the number of stages is 1. HG-30 diaphragm Vacuumpump is used in vacuum distillation, reaction kettle, vacuum suctionfiltration, vacuum condensing, vacuum drying, for compressing and converting gases, etc.