... Vacuum Pump and the main drafters of the standard compressor involved in the development) .In drawing on domestic ... ,spinning,foodstuff,pottery and porcelain ,building materials , ,mill run ,coal,tobacco industry vacuum evaporation ,vacuum crystallization ,dryness,filter ... gas emissions.2BEL Water ring vacuum pump and compressor technology parameters ModleMax Exhaust rateUltimate vacuumPower(kw)Rpmr/ ...