Deliver consistent pumping performance with excellent vacuum stability
Designed to maximise process efficiency
Efficient cooled motors, optimised oil retention, low pump temperatures, high reliability and minimum maintenance
Robust and compact design
| Units | nES40 | nES65 | nES100 | nES200 | nES300 | nES470 | nES570 | nES630 | nES750 | |
 |  |  |  |  |  |  |  |  | ||
| Maximum Displacement 50Hz | m3h-1 / cfm | 44.0/25.9 | 59.0/34.8 | 98.0/57.4 | 180/106 | 280/165 | 470/277 | 570/366 | 700/412 | 840/494 |
| Maximum Displacement 60Hz | m3h-1 / cfm | 53.0/31.2 | 71.0/41.8 | 117/68.9 | 230/130 | 340/200 | 570/366 | – | 840/494 | – |
| Pumping Speed (50 Hz) | m3h-1 / cfm | 38.5/22.7 | 54.0/31.8 | 87.5/51.5 | 170/100 | 240/141 | 400/236 | 470/277 | 640/377 | 755/444 |
| Pumping Speed (60Hz) | m3h-1 / cfm | 47.0/27.7 | 64.0/37.7 | 105/61.8 | 200/118 | 290/171 | 470/277 | – | 755/444 | – |
| Ultimate vacuum without gas ballast | mbar / torr | 0.5/0.4 | 0.5/0.4 | 0.5/0.4 | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 |
| Ultimate vacuum with gas ballast | mbar / torr | 1.5/1.1 | 1.5/1.1 | 1.5/1.1 | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 |
| Inlet connection | ISO / G | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 63 ISO-F / G2 | 63 ISO-F / G2 | ISO100 / G3 | ISO100 / G3 | ISO100 | ISO100 |
| Outlet connection | ISO / G | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 63 ISO-F / G2 | 63 ISO-F / G2 | ISO100 / G3 | ISO100 / G3 | ISO100 | ISO100 |
| Max permitted outlet pressure | bar (abs) | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs |
| Max water vapour pumping rate (50Hz) | kgh-1 / lbh-1 | 0.76/0.80 | 1.0/1.1 | 1.60/1.69 | 3.4/3.6 | 1.3/1.4 | 5.0/5.3 | 7.5/8.0 | 17/18 | 24/25 |
| Max water vapour pumping rate (60Hz) | kgh-1 / lbh-1 | 0.90/0.95 | 1.25/1.32 | 1.70/1.80 | 5.4/5.7 | 1.8/1.9 | 7.5/8.0 | – | 24/25 | – |
| Dimensions (L,W,H) Approximate (tbc) | mm | 540/284/303 | 586/320/314 | 721/400/319 | 1002/535/415 | 1130/555/450 | 1305/863/733 | 1305/863/733 | 1566/989/740 | 1566/989/740 |
| Weight Approximate (tbc) | kg / lb | 67/148 | 86/190 | 104/230 | 142/313 | 244/539 | 480/1059 | 550/1214 | 760/1678 | 760/1678 |
| Motor protection rating | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | |
| Motor power (50Hz) | kW / hp | 1.1/1.5 | 1.5/2.0 | 3.0/4.0 | 4.5/6.0 | 5.5/7.5 | nov.15 | nov.15 | 18.05.2026 | 18.05.2026 |
| Motor power (60Hz) | kW / hp | 1.5/2.0 | 1.8/3.0 | 3.6/5.0 | 5.5/7.5 | 6.6/10.0 | 13.02.2018 | – | 21/30 | – |
| Cooling | air | air | air | air | air | |||||
| Cooling water flow (if applicable) | L / h | – | – | – | – | – | ||||
| Noise level (50Hz) air/water | dB(A) | 58 | 60 | 61 | 69 | 72 | 72 | 75 | 72 | 75 |
| Noise level (60Hz) air/water | dB(A) | 60 | 64 | 64 | 73 | 76 | 75 | – | 75 | – |
| Oil refill capacity | litre | 1 | 2 | 2 | 05.sept | 8.5-11.5 | 20 | 20 | 20-23 | 20-23 |
| Recommended oil | Edwards ULTRAGRADE Performance 70 | |||||||||
