Description All high vacuum pumps rebuilt and sold through AVAC have been completely disassembled, cleaned, re-machined and carefully inspected for wear by our factory trained technicians. Units are assembled with new vanes, shaft seals, exhaust valves, gaskets, springs, oil distribution valves and bearings prior to undergoing an extended performance test to meet or exceed OEM specifications. All pumps are then painted, detailed, and pass a final quality assurance inspection prior to shipping. A final test certificate is provided with each pump, which will be covered with a one-year warranty. The EM range of oil-sealed rotary pumps - renowned for its high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapor - has become the industry standard for laboratory applications. All pumps in the range are independently approved to UL and CSA standards. EM Series Oil-Sealed Rotary Vane Vacuum Pumps EM Series pumps are rugged, mechanical oil-sealed pumps with speeds ranging from 0.7 to 28 m3/hr depending on model size and stage. Compact and quiet, they feature advanced lubrication circuits, high reliability, and accessories to suit your specific application needs.Quiet Operation: Better Working EnvironmentReliable Performance: Proven in a range of laboratory and industrial applicationsFree standing unit and compact design: Flexibility of useGas ballast valve: Large vapor handling capacity The Edwards vacuum pump has a storied history, powering laboratories, production lines, and aerospace testing. Its rotary design stabilized vacuum levels, critical for chemical and scientific accuracy. A-VAC notes that Edwards vacuum pump units are still widely integrated into modern systems, demonstrating how decades of engineering expertise maintain relevance. From early oil-sealed models to contemporary high-efficiency versions, the technology bridges historical development with today’s advanced applications. Edwards Vacuum Pump E2M40 29.7 cfm w/ 1 Year Warranty A36404940 SpecificationsPumpE2M40Displacement 50 Hz42.5 m3h-1 / 25 ft3min-1 60 Hz50.5 m3h-1 / 29.7 ft3min-1 Speed 50 Hz37 m3h-1 / 21.8 ft3min-1 60 Hz44 m3h-1 / 25.9 ft3min-1 Number of stages2Ultimate vacuum (total pressure) without gas ballast mbar / Torr1.0 x 10-3 / 7.7 x 10-4 with gas ballast mbar / Torr7.0 x 10-3 / 5.4 x 10-4 Inlet connectionISO40Outlet connection25 mm flange suitable for NW25Maximum permitted pressure at outlet0.5 bar gaugeMaximum inlet pressure for water vapour7 mbar / 5.3 TorrMaximum water vapor pumping rate0.2 kg h-1 / 0.4 lb h-1 Weight72 kg / 159 lbMotor protection ratingIP 44 or IP 54Motor power 50 Hz 60 Hz1.1 kW / 1.5 hp 1.5 kW / 2 hpStandard oil capacity maximum minimum4.07 liter / 4.3 qt 2.2 liter / 2.3 qtPFPE oil capacity maximum minimum3.5 liter / 3.2 qt 1.32 liter / 1.6 qtNoise level65 dB(A)
