The Edwards 28 E2M28 dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pumping speed. The Edwards 28 E2M28 has superior vapor handling capabilities, while operating quietly. They are very reliable and have accessories to match any application. Applications include use with refrigeration dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. The Edwards 28 E2M28 vacuum pumps have a pumping speed displacement at 60Hz of 21 cubic feet per minute (CFM) and an ultimate pressure of 7.5 X 10 -4 Torr. These Edwards 28 E2M28 rotary vane mechanical vacuum pumps operate on 3-phase 200-230 or 380-415 VAC for 50 Hz and 200-230 or 440-480 VAC at 60 Hz, and have Edwards product number A37333940 (A373-33-940).